diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index d7e0e685e1..66b83ae85d 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -2116,16 +2116,16 @@ gdk_window_clear_backing_rect_redirect (GdkWindow *window,
   if (GDK_WINDOW_DESTROYED (window))
     return;
 
-  clip_region = _gdk_window_calculate_full_clip_region (window,
-							GDK_WINDOW (redirect->redirected),
-							NULL, TRUE,
-							&x_offset, &y_offset);
-  
   paint.x_offset = x_offset;
   paint.y_offset = y_offset;
   paint.pixmap = redirect->pixmap;
   paint.surface = _gdk_drawable_ref_cairo_surface (redirect->pixmap);
   
+  clip_region = _gdk_window_calculate_full_clip_region (window,
+							GDK_WINDOW (redirect->redirected),
+							NULL, TRUE,
+							&x_offset, &y_offset);
+  
   method.cr = NULL;
   method.gc = NULL;
   setup_backing_rect_method (&method, window, &paint, 0, 0);