diff --git a/WINGs/data.c b/WINGs/data.c
index ab0454ef..2133b80e 100644
--- a/WINGs/data.c
+++ b/WINGs/data.c
@@ -60,7 +60,6 @@ WMData *WMCreateDataWithLength(unsigned length)
 
 	aData = WMCreateDataWithCapacity(length);
 	if (length > 0) {
-		memset(aData->bytes, 0, length);
 		aData->length = length;
 	}
 
diff --git a/WINGs/hashtable.c b/WINGs/hashtable.c
index 9822c4ee..27e71e43 100644
--- a/WINGs/hashtable.c
+++ b/WINGs/hashtable.c
@@ -98,14 +98,12 @@ WMHashTable *WMCreateHashTable(WMHashTableCallbacks callbacks)
 	HashTable *table;
 
 	table = wmalloc(sizeof(HashTable));
-	memset(table, 0, sizeof(HashTable));
 
 	table->callbacks = callbacks;
 
 	table->size = INITIAL_CAPACITY;
 
 	table->table = wmalloc(sizeof(HashItem *) * table->size);
-	memset(table->table, 0, sizeof(HashItem *) * table->size);
 
 	return table;
 }
@@ -131,8 +129,9 @@ void WMResetHashTable(WMHashTable * table)
 		wfree(table->table);
 		table->size = INITIAL_CAPACITY;
 		table->table = wmalloc(sizeof(HashItem *) * table->size);
+	} else {
+		memset(table->table, 0, sizeof(HashItem *) * table->size);
 	}
-	memset(table->table, 0, sizeof(HashItem *) * table->size);
 }
 
 void WMFreeHashTable(WMHashTable * table)
diff --git a/WINGs/proplist.c b/WINGs/proplist.c
index 41214948..7b0f49d1 100644
--- a/WINGs/proplist.c
+++ b/WINGs/proplist.c
@@ -1458,7 +1458,6 @@ WMPropList *WMCreatePropListFromDescription(char *desc)
 	PLData *pldata;
 
 	pldata = (PLData *) wmalloc(sizeof(PLData));
-	memset(pldata, 0, sizeof(PLData));
 	pldata->ptr = desc;
 	pldata->lineNumber = 1;
 
@@ -1510,7 +1509,6 @@ WMPropList *WMReadPropListFromFile(char *file)
 	}
 
 	pldata = (PLData *) wmalloc(sizeof(PLData));
-	memset(pldata, 0, sizeof(PLData));
 	pldata->ptr = (char *)wmalloc(length + 1);
 	pldata->filename = file;
 	pldata->lineNumber = 1;
diff --git a/WINGs/wbutton.c b/WINGs/wbutton.c
index ae4ed4e0..3771684d 100644
--- a/WINGs/wbutton.c
+++ b/WINGs/wbutton.c
@@ -105,7 +105,6 @@ WMButton *WMCreateCustomButton(WMWidget * parent, int behaviourMask)
 	Button *bPtr;
 
 	bPtr = wmalloc(sizeof(Button));
-	memset(bPtr, 0, sizeof(Button));
 
 	bPtr->widgetClass = WC_Button;
 
diff --git a/WINGs/wfontpanel.c b/WINGs/wfontpanel.c
index 3cf14c84..55b5a1d0 100644
--- a/WINGs/wfontpanel.c
+++ b/WINGs/wfontpanel.c
@@ -492,7 +492,6 @@ static void addFontToXftFamily(WMHashTable * families, char *name, char *style)
 	array = WMCreateArray(8);
 
 	fam = wmalloc(sizeof(Family));
-	memset(fam, 0, sizeof(Family));
 
 	fam->name = wstrdup(name);
 
diff --git a/WPrefs.app/Appearance.c b/WPrefs.app/Appearance.c
index 47eafd43..3dfe891d 100644
--- a/WPrefs.app/Appearance.c
+++ b/WPrefs.app/Appearance.c
@@ -895,7 +895,6 @@ static void okNewTexture(void *data)
 	WMScreen *scr = WMWidgetScreen(panel->parent);
 
 	titem = wmalloc(sizeof(TextureListItem));
-	memset(titem, 0, sizeof(TextureListItem));
 
 	HideTexturePanel(panel->texturePanel);
 
@@ -1275,7 +1274,6 @@ static void fillTextureList(WMList * lPtr)
 		texture = WMGetFromPLArray(textureList, i);
 
 		titem = wmalloc(sizeof(TextureListItem));
-		memset(titem, 0, sizeof(TextureListItem));
 
 		titem->title = wstrdup(WMGetFromPLString(WMGetFromPLArray(texture, 0)));
 		titem->prop = WMRetainPropList(WMGetFromPLArray(texture, 1));
@@ -1876,7 +1874,6 @@ static void setupTextureFor(WMList * list, char *key, char *defValue, char *titl
 	TextureListItem *titem;
 
 	titem = wmalloc(sizeof(TextureListItem));
-	memset(titem, 0, sizeof(TextureListItem));
 
 	titem->title = wstrdup(title);
 	titem->prop = GetObjectForKey(key);
@@ -2044,7 +2041,6 @@ Panel *InitAppearance(WMScreen * scr, WMWindow * win)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Appearance Preferences");
 
diff --git a/WPrefs.app/Configurations.c b/WPrefs.app/Configurations.c
index a19e947b..952fd260 100644
--- a/WPrefs.app/Configurations.c
+++ b/WPrefs.app/Configurations.c
@@ -467,7 +467,6 @@ Panel *InitConfigurations(WMScreen *scr, WMWidget *parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Other Configurations");
 	panel->description = _("Animation speeds, titlebar styles, various option\n"
diff --git a/WPrefs.app/Expert.c b/WPrefs.app/Expert.c
index 04b1648d..b14f5490 100644
--- a/WPrefs.app/Expert.c
+++ b/WPrefs.app/Expert.c
@@ -139,7 +139,6 @@ Panel *InitExpert(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Expert User Preferences");
 
diff --git a/WPrefs.app/Focus.c b/WPrefs.app/Focus.c
index 99a49ead..8a37af58 100644
--- a/WPrefs.app/Focus.c
+++ b/WPrefs.app/Focus.c
@@ -327,7 +327,6 @@ Panel *InitFocus(WMScreen * scr, WMWindow * win)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Window Focus Preferences");
 	panel->description = _("Keyboard focus switching policy and related options.");
diff --git a/WPrefs.app/FontSimple.c b/WPrefs.app/FontSimple.c
index 715b3436..cde17b02 100644
--- a/WPrefs.app/FontSimple.c
+++ b/WPrefs.app/FontSimple.c
@@ -712,7 +712,6 @@ Panel *InitFontSimple(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Font Configuration");
 
diff --git a/WPrefs.app/Icons.c b/WPrefs.app/Icons.c
index b70caa41..599dfb03 100644
--- a/WPrefs.app/Icons.c
+++ b/WPrefs.app/Icons.c
@@ -316,7 +316,6 @@ Panel *InitIcons(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Icon Preferences");
 
diff --git a/WPrefs.app/KeyboardSettings.c b/WPrefs.app/KeyboardSettings.c
index 5a67a7fd..3dc27ebc 100644
--- a/WPrefs.app/KeyboardSettings.c
+++ b/WPrefs.app/KeyboardSettings.c
@@ -160,7 +160,6 @@ Panel *InitKeyboardSettings(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Keyboard Preferences");
 
diff --git a/WPrefs.app/KeyboardShortcuts.c b/WPrefs.app/KeyboardShortcuts.c
index aad8f334..5718653d 100644
--- a/WPrefs.app/KeyboardShortcuts.c
+++ b/WPrefs.app/KeyboardShortcuts.c
@@ -512,7 +512,6 @@ static void createPanel(Panel * p)
 
 	panel->actionCount = WMGetListNumberOfRows(panel->actLs);
 	panel->shortcuts = wmalloc(sizeof(char *) * panel->actionCount);
-	memset(panel->shortcuts, 0, sizeof(char *) * panel->actionCount);
 
     /***************** Shortcut ****************/
 
@@ -583,7 +582,6 @@ Panel *InitKeyboardShortcuts(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Keyboard Shortcut Preferences");
 
diff --git a/WPrefs.app/Menu.c b/WPrefs.app/Menu.c
index 342e7f0f..e9eaa9be 100644
--- a/WPrefs.app/Menu.c
+++ b/WPrefs.app/Menu.c
@@ -155,7 +155,7 @@ static char *commandNames[] = {
 	"LEGAL_PANEL"
 };
 
-#define NEW(type) memset(wmalloc(sizeof(type)), 0, sizeof(type))
+#define NEW(type) wmalloc(sizeof(type))
 
 #define ICON_FILE	"menus"
 
@@ -1656,7 +1656,6 @@ Panel *InitMenu(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Applications Menu Definition");
 
diff --git a/WPrefs.app/MenuPreferences.c b/WPrefs.app/MenuPreferences.c
index a5798589..b56e8e2b 100644
--- a/WPrefs.app/MenuPreferences.c
+++ b/WPrefs.app/MenuPreferences.c
@@ -220,7 +220,6 @@ Panel *InitMenuPreferences(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Menu Preferences");
 
diff --git a/WPrefs.app/MouseSettings.c b/WPrefs.app/MouseSettings.c
index ba6801d5..b1ed9fc2 100644
--- a/WPrefs.app/MouseSettings.c
+++ b/WPrefs.app/MouseSettings.c
@@ -790,7 +790,6 @@ Panel *InitMouseSettings(WMScreen * scr, WMWidget * parent)
 	wheelActions[1] = wstrdup(_("Switch Workspaces"));
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Mouse Preferences");
 
diff --git a/WPrefs.app/Paths.c b/WPrefs.app/Paths.c
index b886e2e9..ed515e5d 100644
--- a/WPrefs.app/Paths.c
+++ b/WPrefs.app/Paths.c
@@ -307,7 +307,6 @@ Panel *InitPaths(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Search Path Configuration");
 
diff --git a/WPrefs.app/Preferences.c b/WPrefs.app/Preferences.c
index 2c60f05a..6d0217db 100644
--- a/WPrefs.app/Preferences.c
+++ b/WPrefs.app/Preferences.c
@@ -325,7 +325,6 @@ Panel *InitPreferences(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Miscellaneous Ergonomic Preferences");
 	panel->description = _("Various settings like balloon text, geometry\n" "displays etc.");
diff --git a/WPrefs.app/TexturePanel.c b/WPrefs.app/TexturePanel.c
index ae3ee64b..ad78b206 100644
--- a/WPrefs.app/TexturePanel.c
+++ b/WPrefs.app/TexturePanel.c
@@ -463,7 +463,6 @@ static void gradAddCallback(WMWidget * w, void *data)
 	row = WMGetListSelectedItemRow(panel->gcolL) + 1;
 	item = WMInsertListItem(panel->gcolL, row, "00,00,00");
 	rgb = wmalloc(sizeof(RColor));
-	memset(rgb, 0, sizeof(RColor));
 	item->clientData = rgb;
 
 	WMSelectListItem(panel->gcolL, row);
@@ -1120,7 +1119,6 @@ TexturePanel *CreateTexturePanel(WMWindow * keyWindow)
 	WMScreen *scr = WMWidgetScreen(keyWindow);
 
 	panel = wmalloc(sizeof(TexturePanel));
-	memset(panel, 0, sizeof(TexturePanel));
 
 	panel->listFont = WMSystemFontOfSize(scr, 12);
 
diff --git a/WPrefs.app/Themes.c b/WPrefs.app/Themes.c
index 04168085..453dd5c9 100644
--- a/WPrefs.app/Themes.c
+++ b/WPrefs.app/Themes.c
@@ -207,7 +207,6 @@ Panel *InitThemes(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Themes");
 
diff --git a/WPrefs.app/WindowHandling.c b/WPrefs.app/WindowHandling.c
index 88b5fef7..0770ed51 100644
--- a/WPrefs.app/WindowHandling.c
+++ b/WPrefs.app/WindowHandling.c
@@ -500,7 +500,6 @@ Panel *InitWindowHandling(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Window Handling Preferences");
 
diff --git a/WPrefs.app/Workspace.c b/WPrefs.app/Workspace.c
index cdc0727f..6ba26fcd 100644
--- a/WPrefs.app/Workspace.c
+++ b/WPrefs.app/Workspace.c
@@ -327,7 +327,6 @@ Panel *InitWorkspace(WMScreen * scr, WMWidget * parent)
 	_Panel *panel;
 
 	panel = wmalloc(sizeof(_Panel));
-	memset(panel, 0, sizeof(_Panel));
 
 	panel->sectionName = _("Workspace Preferences");
 
diff --git a/WPrefs.app/double.c b/WPrefs.app/double.c
index 92bcee2d..d708b0d8 100644
--- a/WPrefs.app/double.c
+++ b/WPrefs.app/double.c
@@ -55,8 +55,6 @@ DoubleTest *CreateDoubleTest(WMWidget * parent, char *text)
 
 	/* allocate some storage for our new widget instance */
 	dPtr = wmalloc(sizeof(DoubleTest));
-	/* initialize it */
-	memset(dPtr, 0, sizeof(DoubleTest));
 
 	/* set the class ID */
 	dPtr->widgetClass = DoubleTestClass;
diff --git a/WPrefs.app/editmenu.c b/WPrefs.app/editmenu.c
index c5c3f414..244a5beb 100644
--- a/WPrefs.app/editmenu.c
+++ b/WPrefs.app/editmenu.c
@@ -125,8 +125,6 @@ WEditMenuItem *WCreateEditMenuItem(WMWidget * parent, char *title, Bool isTitle)
 
 	iPtr = wmalloc(sizeof(WEditMenuItem));
 
-	memset(iPtr, 0, sizeof(WEditMenuItem));
-
 	iPtr->widgetClass = EditMenuItemClass;
 
 	iPtr->view = W_CreateView(W_VIEW(parent));
@@ -373,7 +371,6 @@ static WEditMenu *makeEditMenu(WMScreen * scr, WMWidget * parent, char *title)
 		InitEditMenu(scr);
 
 	mPtr = wmalloc(sizeof(WEditMenu));
-	memset(mPtr, 0, sizeof(WEditMenu));
 
 	mPtr->widgetClass = EditMenuClass;
 
diff --git a/src/appicon.c b/src/appicon.c
index 80f08f46..198fe53b 100644
--- a/src/appicon.c
+++ b/src/appicon.c
@@ -69,7 +69,6 @@ WAppIcon *wAppIconCreateForDock(WScreen * scr, char *command, char *wm_instance,
 
 	dicon = wmalloc(sizeof(WAppIcon));
 	wretain(dicon);
-	memset(dicon, 0, sizeof(WAppIcon));
 	dicon->yindex = -1;
 	dicon->xindex = -1;
 
@@ -122,7 +121,6 @@ WAppIcon *wAppIconCreate(WWindow * leader_win)
 
 	aicon = wmalloc(sizeof(WAppIcon));
 	wretain(aicon);
-	memset(aicon, 0, sizeof(WAppIcon));
 
 	aicon->yindex = -1;
 	aicon->xindex = -1;
diff --git a/src/application.c b/src/application.c
index 584c0aaf..18ff57bc 100644
--- a/src/application.c
+++ b/src/application.c
@@ -246,7 +246,6 @@ WApplication *wApplicationCreate(WWindow * wwin)
 	}
 
 	wapp = wmalloc(sizeof(WApplication));
-	memset(wapp, 0, sizeof(WApplication));
 
 	wapp->refcount = 1;
 	wapp->last_focused = NULL;
diff --git a/src/balloon.c b/src/balloon.c
index 517dc928..c00375ab 100644
--- a/src/balloon.c
+++ b/src/balloon.c
@@ -479,7 +479,6 @@ void wBalloonInitialize(WScreen * scr)
 	unsigned long vmask;
 
 	bal = wmalloc(sizeof(WBalloon));
-	memset(bal, 0, sizeof(WBalloon));
 
 	scr->balloon = bal;
 
diff --git a/src/defaults.c b/src/defaults.c
index 1f6b6eb6..40c4122c 100644
--- a/src/defaults.c
+++ b/src/defaults.c
@@ -813,7 +813,6 @@ WDDomain *wDefaultsInitDomain(char *domain, Bool requireDictionary)
 	}
 
 	db = wmalloc(sizeof(WDDomain));
-	memset(db, 0, sizeof(WDDomain));
 	db->domain_name = domain;
 	db->path = wdefaultspathfordomain(domain);
 	the_path = db->path;
diff --git a/src/dialog.c b/src/dialog.c
index e4c8f345..f2ec9004 100644
--- a/src/dialog.c
+++ b/src/dialog.c
@@ -885,7 +885,6 @@ Bool wIconChooserDialog(WScreen * scr, char **file, char *instance, char *class)
 	Bool result;
 
 	panel = wmalloc(sizeof(IconPanel));
-	memset(panel, 0, sizeof(IconPanel));
 
 	panel->scr = scr;
 
@@ -1128,7 +1127,6 @@ void wShowInfoPanel(WScreen * scr)
 	}
 
 	panel = wmalloc(sizeof(InfoPanel));
-	memset(panel, 0, sizeof(InfoPanel));
 
 	panel->scr = scr;
 
@@ -1521,7 +1519,6 @@ int wShowCrashingDialogPanel(int whatSig)
 	char buf[256];
 
 	panel = wmalloc(sizeof(CrashPanel));
-	memset(panel, 0, sizeof(CrashPanel));
 
 	screen_no = DefaultScreen(dpy);
 	scr_width = WidthOfScreen(ScreenOfDisplay(dpy, screen_no));
diff --git a/src/dock.c b/src/dock.c
index 61d70f05..9d12814a 100644
--- a/src/dock.c
+++ b/src/dock.c
@@ -1057,12 +1057,10 @@ WDock *wDockCreate(WScreen *scr, int type)
 	make_keys();
 
 	dock = wmalloc(sizeof(WDock));
-	memset(dock, 0, sizeof(WDock));
 
 	dock->max_icons = DOCK_MAX_ICONS;
 
 	dock->icon_array = wmalloc(sizeof(WAppIcon *) * dock->max_icons);
-	memset(dock->icon_array, 0, sizeof(WAppIcon *) * dock->max_icons);
 
 	btn = mainIconCreate(scr, type);
 
@@ -1788,7 +1786,6 @@ void wDockDoAutoLaunch(WDock *dock, int workspace)
 			continue;
 
 		state = wmalloc(sizeof(WSavedState));
-		memset(state, 0, sizeof(WSavedState));
 		state->workspace = workspace;
 		/* TODO: this is klugy and is very difficult to understand
 		 * what's going on. Try to clean up */
@@ -2448,9 +2445,7 @@ Bool wDockFindFreeSlot(WDock *dock, int *x_pos, int *y_pos)
 		hcount = WMIN(dock->max_icons, scr->scr_width / ICON_SIZE);
 		vcount = WMIN(dock->max_icons, scr->scr_height / ICON_SIZE);
 		hmap = wmalloc(hcount + 1);
-		memset(hmap, 0, hcount + 1);
 		vmap = wmalloc(vcount + 1);
-		memset(vmap, 0, vcount + 1);
 
 		/* mark used positions */
 		switch (corner) {
@@ -2582,7 +2577,6 @@ Bool wDockFindFreeSlot(WDock *dock, int *x_pos, int *y_pos)
 	r = (mwidth - 1) / 2;
 
 	slot_map = wmalloc(mwidth * mwidth);
-	memset(slot_map, 0, mwidth * mwidth);
 
 #define XY2OFS(x,y) (WMAX(abs(x),abs(y)) > r) ? 0 : (((y)+r)*(mwidth)+(x)+r)
 
@@ -2744,7 +2738,6 @@ static pid_t execCommand(WAppIcon *btn, char *command, WSavedState *state)
 	if (pid > 0) {
 		if (!state) {
 			state = wmalloc(sizeof(WSavedState));
-			memset(state, 0, sizeof(WSavedState));
 			state->hidden = -1;
 			state->miniaturized = -1;
 			state->shaded = -1;
diff --git a/src/dockedapp.c b/src/dockedapp.c
index 944e025a..5ef64f63 100644
--- a/src/dockedapp.c
+++ b/src/dockedapp.c
@@ -264,7 +264,6 @@ void ShowDockAppSettingsPanel(WAppIcon * aicon)
 	WMBox *vbox;
 
 	panel = wmalloc(sizeof(AppSettingsPanel));
-	memset(panel, 0, sizeof(AppSettingsPanel));
 
 	panel->editedIcon = aicon;
 
diff --git a/src/event.c b/src/event.c
index 8e950a20..d31ba352 100644
--- a/src/event.c
+++ b/src/event.c
@@ -966,7 +966,6 @@ static void handleClientMessage(XEvent * event)
 
 		len = sizeof(event->xclient.data.b) + 1;
 		command = wmalloc(len);
-		memset(command, 0, len);
 		strncpy(command, event->xclient.data.b, sizeof(event->xclient.data.b));
 
 		if (strncmp(command, "Reconfigure", sizeof("Reconfigure")) == 0) {
diff --git a/src/framewin.c b/src/framewin.c
index 73f68b23..2d3c0099 100644
--- a/src/framewin.c
+++ b/src/framewin.c
@@ -67,7 +67,6 @@ WFrameWindow *wFrameWindowCreate(WScreen * scr, int wlevel, int x, int y,
 	WFrameWindow *fwin;
 
 	fwin = wmalloc(sizeof(WFrameWindow));
-	memset(fwin, 0, sizeof(WFrameWindow));
 
 	fwin->screen_ptr = scr;
 
diff --git a/src/icon.c b/src/icon.c
index 73dae74f..2a6d7744 100644
--- a/src/icon.c
+++ b/src/icon.c
@@ -189,7 +189,6 @@ static WIcon *wIconCreateCore(WScreen *scr, int coord_x, int coord_y)
 	XSetWindowAttributes attribs;
 
 	icon = wmalloc(sizeof(WIcon));
-	memset(icon, 0, sizeof(WIcon));
 	icon->core = wCoreCreateTopLevel(scr,
 					 coord_x,
 					 coord_y,
diff --git a/src/menu.c b/src/menu.c
index 2d26ee7e..f4383856 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -146,8 +146,6 @@ WMenu *wMenuCreate(WScreen * screen, char *title, int main_menu)
 
 	menu = wmalloc(sizeof(WMenu));
 
-	memset(menu, 0, sizeof(WMenu));
-
 #ifdef SINGLE_MENULEVEL
 	tmp = WMSubmenuLevel;
 #else
@@ -274,7 +272,6 @@ WMenuEntry *wMenuInsertCallback(WMenu * menu, int index, char *text,
 		menu->brother->alloced_entries = menu->alloced_entries;
 	}
 	entry = wmalloc(sizeof(WMenuEntry));
-	memset(entry, 0, sizeof(WMenuEntry));
 	entry->flags.enabled = 1;
 	entry->text = wstrdup(text);
 	entry->cascade = -1;
diff --git a/src/pixmap.c b/src/pixmap.c
index 62c4cebc..d6b9431c 100644
--- a/src/pixmap.c
+++ b/src/pixmap.c
@@ -53,7 +53,6 @@ WPixmap *wPixmapCreateFromXPMData(WScreen * scr, char **data)
 		return NULL;
 
 	pix = wmalloc(sizeof(WPixmap));
-	memset(pix, 0, sizeof(WPixmap));
 
 	RConvertImageMask(scr->rcontext, image, &pix->image, &pix->mask, 128);
 
@@ -83,7 +82,6 @@ WPixmap *wPixmapCreateFromXBMData(WScreen * scr, char *data, char *mask,
 	WPixmap *pix;
 
 	pix = wmalloc(sizeof(WPixmap));
-	memset(pix, 0, sizeof(WPixmap));
 	pix->image = XCreatePixmapFromBitmapData(dpy, scr->w_win, data, width, height, fg, bg, scr->w_depth);
 	if (pix->image == None) {
 		wfree(pix);
@@ -108,7 +106,6 @@ WPixmap *wPixmapCreate(WScreen * scr, Pixmap image, Pixmap mask)
 	unsigned int width, height, depth, baz;
 
 	pix = wmalloc(sizeof(WPixmap));
-	memset(pix, 0, sizeof(WPixmap));
 	pix->image = image;
 	pix->mask = mask;
 	if (!XGetGeometry(dpy, image, &foo, &bar, &bar, &width, &height, &baz, &depth)) {
diff --git a/src/placement.c b/src/placement.c
index a3cdd23f..93ba39a3 100644
--- a/src/placement.c
+++ b/src/placement.c
@@ -169,7 +169,6 @@ void PlaceIcon(WScreen *scr, int *x_ret, int *y_ret, int head)
 	 * but complexity is much better (faster) than it.
 	 */
 	map = wmalloc((sw + 2) * (sh + 2));
-	memset(map, 0, (sw + 2) * (sh + 2));
 
 #define INDEX(x,y)	(((y)+1)*(sw+2) + (x) + 1)
 
diff --git a/src/screen.c b/src/screen.c
index b0fb88e9..4f279f0f 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -519,7 +519,6 @@ WScreen *wScreenInit(int screen_number)
 	int i;
 
 	scr = wmalloc(sizeof(WScreen));
-	memset(scr, 0, sizeof(WScreen));
 
 	scr->stacking_list = WMCreateTreeBag();
 
diff --git a/src/session.c b/src/session.c
index 9dba574c..421150b4 100644
--- a/src/session.c
+++ b/src/session.c
@@ -370,7 +370,6 @@ static WSavedState *getWindowState(WScreen * scr, WMPropList * win_state)
 	unsigned mask;
 	int i;
 
-	memset(state, 0, sizeof(WSavedState));
 	state->workspace = -1;
 	value = WMGetFromPLDictionary(win_state, sWorkspace);
 	if (value && WMIsPLString(value)) {
diff --git a/src/switchpanel.c b/src/switchpanel.c
index 23972a12..8e9e9f68 100644
--- a/src/switchpanel.c
+++ b/src/switchpanel.c
@@ -435,8 +435,6 @@ WSwitchPanel *wInitSwitchPanel(WScreen * scr, WWindow * curwin, Bool class_only)
 	WMRect rect;
 	rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 
-	memset(panel, 0, sizeof(WSwitchPanel));
-
 	panel->scr = scr;
 
 	panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != NULL, class_only);
diff --git a/src/texture.c b/src/texture.c
index dca7b98d..a29406a3 100644
--- a/src/texture.c
+++ b/src/texture.c
@@ -180,7 +180,6 @@ WTexGradient *wTextureMakeGradient(WScreen * scr, int style, RColor * from, RCol
 	XGCValues gcv;
 
 	texture = wmalloc(sizeof(WTexture));
-	memset(texture, 0, sizeof(WTexture));
 	texture->type = style;
 	texture->subtype = 0;
 
@@ -207,7 +206,6 @@ WTexIGradient *wTextureMakeIGradient(WScreen * scr, int thickness1, RColor color
 	int i;
 
 	texture = wmalloc(sizeof(WTexture));
-	memset(texture, 0, sizeof(WTexture));
 	texture->type = WTEX_IGRADIENT;
 	for (i = 0; i < 2; i++) {
 		texture->colors1[i] = colors1[i];
@@ -239,7 +237,6 @@ WTexMGradient *wTextureMakeMGradient(WScreen * scr, int style, RColor ** colors)
 	int i;
 
 	texture = wmalloc(sizeof(WTexture));
-	memset(texture, 0, sizeof(WTexture));
 	texture->type = style;
 	texture->subtype = 0;
 
@@ -272,7 +269,6 @@ WTexPixmap *wTextureMakePixmap(WScreen * scr, int style, char *pixmap_file, XCol
 		return NULL;
 
 	texture = wmalloc(sizeof(WTexture));
-	memset(texture, 0, sizeof(WTexture));
 	texture->type = WTEX_PIXMAP;
 	texture->subtype = style;
 
@@ -300,7 +296,6 @@ WTexTGradient *wTextureMakeTGradient(WScreen * scr, int style, RColor * from, RC
 		return NULL;
 
 	texture = wmalloc(sizeof(WTexture));
-	memset(texture, 0, sizeof(WTexture));
 	texture->type = style;
 
 	texture->opacity = opacity;
diff --git a/src/wcore.c b/src/wcore.c
index 854c573f..ac896a52 100644
--- a/src/wcore.c
+++ b/src/wcore.c
@@ -53,7 +53,6 @@ WCoreWindow *wCoreCreateTopLevel(WScreen * screen, int x, int y, int width, int
 	XSetWindowAttributes attribs;
 
 	core = wmalloc(sizeof(WCoreWindow));
-	memset(core, 0, sizeof(WCoreWindow));
 
 	/* don't set CWBackPixel so that transparent XRender windows
 	   are see-through */
@@ -109,7 +108,6 @@ WCoreWindow *wCoreCreate(WCoreWindow * parent, int x, int y, int width, int heig
 	XSetWindowAttributes attribs;
 
 	core = wmalloc(sizeof(WCoreWindow));
-	memset(core, 0, sizeof(WCoreWindow));
 
 	vmask = /*CWBackPixmap|CWBackPixel| */ CWBorderPixel | CWCursor | CWEventMask;
 	attribs.cursor = wCursor[WCUR_DEFAULT];
diff --git a/src/window.c b/src/window.c
index f05be9ed..b3802eb5 100644
--- a/src/window.c
+++ b/src/window.c
@@ -167,8 +167,6 @@ WWindow *wWindowCreate(void)
 	wwin = wmalloc(sizeof(WWindow));
 	wretain(wwin);
 
-	memset(wwin, 0, sizeof(WWindow));
-
 	wwin->client_descriptor.handle_mousedown = frameMouseDown;
 	wwin->client_descriptor.parent = wwin;
 	wwin->client_descriptor.self = wwin;
diff --git a/util/wmagnify.c b/util/wmagnify.c
index 3bb7a372..91e2d2ad 100644
--- a/util/wmagnify.c
+++ b/util/wmagnify.c
@@ -99,7 +99,6 @@ static BufferData *makeBufferData(WMWindow * win, WMLabel * label, int width, in
 	width /= magfactor;
 	height /= magfactor;
 	data->buffer = wmalloc(sizeof(unsigned long) * width * height);
-	memset(data->buffer, 0, width * height * sizeof(unsigned long));
 	data->width = width;
 	data->height = height;
 
diff --git a/util/wmsetbg.c b/util/wmsetbg.c
index 17b05839..86d1f916 100644
--- a/util/wmsetbg.c
+++ b/util/wmsetbg.c
@@ -277,7 +277,6 @@ BackgroundTexture *parseTexture(RContext * rc, char *text)
 	}
 
 	texture = wmalloc(sizeof(BackgroundTexture));
-	memset(texture, 0, sizeof(BackgroundTexture));
 
 	GETSTRORGOTO(val, type, 0, error);