diff --git a/src/WindowMaker.h b/src/WindowMaker.h
index fa04093b..e1b49295 100644
--- a/src/WindowMaker.h
+++ b/src/WindowMaker.h
@@ -405,6 +405,7 @@ extern struct WPreferences {
 	char ignore_gtk_decoration_hints;
 
 	char dont_blink;                   /* do not blink icon selection */
+	char keep_dock_on_primary_head;    /* keep dock on primary head */
 
 	/* Appearance options */
 	char new_style;                    /* Use newstyle buttons */
diff --git a/src/defaults.c b/src/defaults.c
index 64ce2404..00c05d2c 100644
--- a/src/defaults.c
+++ b/src/defaults.c
@@ -521,6 +521,8 @@ WDefaultEntry optionList[] = {
 	    &wPreferences.minipreview_size, getInt, NULL, NULL, NULL},
 	{"IgnoreGtkHints", "NO", NULL,
 	    &wPreferences.ignore_gtk_decoration_hints, getBool, NULL, NULL, NULL},
+	{"KeepDockOnPrimaryHead", "NO", NULL,
+	    &wPreferences.keep_dock_on_primary_head, getBool, NULL, NULL, NULL},
 
 	/* style options */