diff --git a/src/screen.c b/src/screen.c
index 5f248107..6a7358fa 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -617,7 +617,7 @@ WScreen *wScreenInit(int screen_number)
 {
 	WScreen *scr;
 	XIconSize icon_size[1];
-	RContextAttributes rattr;
+	RContextAttributes rattr = {};
 	long event_mask;
 	XErrorHandler oldHandler;
 	int i;
diff --git a/util/wmiv.c b/util/wmiv.c
index cb64ec7e..7717baf3 100755
--- a/util/wmiv.c
+++ b/util/wmiv.c
@@ -680,7 +680,7 @@ link_t *connect_dir(char *dirpath, linked_list_t *li)
 int main(int argc, char **argv)
 {
 	int option = -1;
-	RContextAttributes attr;
+	RContextAttributes attr = {};
 	XEvent e;
 	KeySym keysym;
 	char *reading_filename = "";