diff --git a/scene.cpp b/scene.cpp
index bab07ccaa0..056223a87a 100644
--- a/scene.cpp
+++ b/scene.cpp
@@ -353,7 +353,7 @@ QRegion Scene::Window::shape() const
                 XFree(rects);
                 }
             else
-                shape_region = QRegion( 0, 0, width(), height());
+                shape_region = QRegion();
             }
         else
             shape_region = QRegion( 0, 0, width(), height());