diff --git a/scene.cpp b/scene.cpp
index 211002ce35..54512ac54f 100644
--- a/scene.cpp
+++ b/scene.cpp
@@ -186,7 +186,7 @@ void Scene::paintGenericScreen( int orig_mask, ScreenPaintData )
     foreach( Window* w, stacking_order ) // bottom to top
         {
         WindowPrePaintData data;
-        data.mask = orig_mask | ( (w->isOpaque() && !w->toplevelDecorationHasAlpha())? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT );
+        data.mask = orig_mask | ( (w->isOpaque() && !w->decorationHasAlpha())? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT );
         w->resetPaintingEnabled();
         data.paint = infiniteRegion(); // no clipping, so doesn't really matter
         data.clip = QRegion();
@@ -229,7 +229,7 @@ void Scene::paintSimpleScreen( int orig_mask, QRegion region )
         {
         Window* w = stacking_order[ i ];
         WindowPrePaintData data;
-        data.mask = orig_mask | ( (w->isOpaque() && !w->toplevelDecorationHasAlpha()) ? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT );
+        data.mask = orig_mask | ( (w->isOpaque() && !w->decorationHasAlpha()) ? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT );
         w->resetPaintingEnabled();
         data.paint = region;
         // Clip out the decoration for opaque windows; the decoration is drawn in the second pass
@@ -440,7 +440,7 @@ bool Scene::Window::isOpaque() const
     return toplevel->opacity() == 1.0 && !toplevel->hasAlpha();
     }
 
-bool Scene::Window::toplevelDecorationHasAlpha( void ) const
+bool Scene::Window::decorationHasAlpha( void ) const
     {
     if( toplevel->clientPos() == QPoint( 0, 0 ) && toplevel->clientSize() == toplevel->visibleRect().size())
         return false;