diff --git a/gdk/x11/gdkscreen-x11.c b/gdk/x11/gdkscreen-x11.c
index ffc5e2cfeb..d0b288ad15 100644
--- a/gdk/x11/gdkscreen-x11.c
+++ b/gdk/x11/gdkscreen-x11.c
@@ -1363,7 +1363,7 @@ gdk_screen_get_active_window (GdkScreen *screen)
 }
 
 /**
- * gdk_screen_get_window_stack
+ * gdk_screen_get_window_stack:
  * @screen: a #GdkScreen
  *
  * Returns a #GList of #GdkWindow<!-- -->s representing the current