diff --git a/composite.cpp b/composite.cpp
index 573825f2f2..5a3a68ddd0 100644
--- a/composite.cpp
+++ b/composite.cpp
@@ -411,7 +411,7 @@ void Workspace::performCompositing()
           // TODO I think effects->transformWindowDamage() doesn't need to be called here,
           // pre-paint will extend painted window areas as necessary.
         repaints_region |= c->repaints().translated( c->pos());
-        c->resetRepaints( c->rect());
+        c->resetRepaints( c->decorationRect());
         }
     QRegion repaints = repaints_region;
     // clear all repaints, so that post-pass can add repaints for the next repaint
diff --git a/toplevel.h b/toplevel.h
index 62160f7508..9b8f7cc9a4 100644
--- a/toplevel.h
+++ b/toplevel.h
@@ -65,6 +65,7 @@ class Toplevel
         virtual QPoint clientPos() const = 0; // inside of geometry()
         virtual QSize clientSize() const = 0;
         virtual QRect visibleRect() const; // the area the window occupies on the screen
+        virtual QRect decorationRect() const; // rect including the decoration shadows
 
         // prefer isXXX() instead
         // 0 for supported types means default for managed/unmanaged types
@@ -245,6 +246,11 @@ inline QRect Toplevel::rect() const
     return QRect( 0, 0, width(), height());
     }
 
+inline QRect Toplevel::decorationRect() const
+    {
+    return rect();
+    }
+
 inline bool Toplevel::readyForPainting() const
     {
     return ready_for_painting;