diff --git a/src/Window.hh b/src/Window.hh
index 74a562a0..0f10cfbc 100644
--- a/src/Window.hh
+++ b/src/Window.hh
@@ -417,6 +417,7 @@ public:
 
 #ifdef    SHAPE
   void configureShape(void);
+  void clearShape(void);
   void shapeEvent(XShapeEvent * /*unused*/);
 #endif // SHAPE