diff --git a/plugins/scenes/qpainter/scene_qpainter.cpp b/plugins/scenes/qpainter/scene_qpainter.cpp
--- a/plugins/scenes/qpainter/scene_qpainter.cpp
+++ b/plugins/scenes/qpainter/scene_qpainter.cpp
@@ -223,7 +223,6 @@
 
 SceneQPainter::Window::~Window()
 {
-    discardShape();
 }
 
 static void paintSubSurface(QPainter *painter, const QPoint &pos, QPainterWindowPixmap *pixmap)
diff --git a/plugins/scenes/xrender/scene_xrender.cpp b/plugins/scenes/xrender/scene_xrender.cpp
--- a/plugins/scenes/xrender/scene_xrender.cpp
+++ b/plugins/scenes/xrender/scene_xrender.cpp
@@ -327,7 +327,6 @@
 
 SceneXrender::Window::~Window()
 {
-    discardShape();
 }
 
 void SceneXrender::Window::cleanup()