diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index f68eb02f9..e13ce6df0 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -224,7 +224,7 @@ gdk_window_new (GdkWindow     *parent,
     }
   else
     {
-      depth = 1;
+      depth = 0;
       class = InputOnly;
       colormap = NULL;
     }
diff --git a/gdk/x11/gdkwindow-x11.c b/gdk/x11/gdkwindow-x11.c
index f68eb02f9..e13ce6df0 100644
--- a/gdk/x11/gdkwindow-x11.c
+++ b/gdk/x11/gdkwindow-x11.c
@@ -224,7 +224,7 @@ gdk_window_new (GdkWindow     *parent,
     }
   else
     {
-      depth = 1;
+      depth = 0;
       class = InputOnly;
       colormap = NULL;
     }