Index: libxfcegui4/xfce-gtk-extensions.c
===================================================================
--- libxfcegui4/xfce-gtk-extensions.c	(revision 19349)
+++ libxfcegui4/xfce-gtk-extensions.c	(working copy)
@@ -46,7 +46,7 @@
 	GtkRequisition requisition;
 	GdkRectangle   geometry;
         GdkScreen     *widget_screen;
-	gint           x, y;
+	gint           x, y, width, height;
 
 	gdk_screen_get_monitor_geometry (screen, monitor, &geometry);
         
@@ -73,9 +73,10 @@
          */
         requisition.width = requisition.height = -1;
 	gtk_widget_size_request (GTK_WIDGET (window), &requisition);
+	gtk_window_get_size (GTK_WINDOW (window), &width, &height);
 
-	x = geometry.x + (geometry.width - requisition.width) / 2;
-	y = geometry.y + (geometry.height - requisition.height) / 2;
+	x = geometry.x + (geometry.width - width) / 2;
+	y = geometry.y + (geometry.height - height) / 2;
 
         gtk_window_move (window, x, y);
 }