diff --git a/kcmkwin/kwindecoration/preview.cpp b/kcmkwin/kwindecoration/preview.cpp
index a0898fd61b..e79ba32bda 100644
--- a/kcmkwin/kwindecoration/preview.cpp
+++ b/kcmkwin/kwindecoration/preview.cpp
@@ -342,7 +342,7 @@ void KDecorationPreviewBridge::showWindowMenu( const QRect &)
     {
     }
 
-void KDecorationPreviewBridge::showWindowMenu( QPoint )
+void KDecorationPreviewBridge::showWindowMenu( const QPoint & )
     {
     }
 
diff --git a/kcmkwin/kwindecoration/preview.h b/kcmkwin/kwindecoration/preview.h
index b9041ad083..b0405b58f5 100644
--- a/kcmkwin/kwindecoration/preview.h
+++ b/kcmkwin/kwindecoration/preview.h
@@ -89,7 +89,7 @@ class KDecorationPreviewBridge
 	virtual QString caption() const;
 	virtual void processMousePressEvent( QMouseEvent* );
 	virtual void showWindowMenu( const QRect &);
-	virtual void showWindowMenu( QPoint );
+	virtual void showWindowMenu( const QPoint & );
 	virtual void performWindowOperation( WindowOperation );
         virtual void setMask( const QRegion&, int );
         virtual bool isPreview() const;