diff --git a/src/servers/app/drawing/Painter/Painter.h b/src/servers/app/drawing/Painter/Painter.h
index b28c1e46f6..96cf6305bc 100644
--- a/src/servers/app/drawing/Painter/Painter.h
+++ b/src/servers/app/drawing/Painter/Painter.h
@@ -191,8 +191,7 @@ class Painter {
 
 			BRect				InvertRect(		const BRect& r) const;
 
-	inline	BRect				ClipRect(const BRect& rect) const
-									{ return _Clipped(rect); }
+	inline	BRect				ClipRect(		BRect rect) const;
 
  private:
 			void				_Transform(BPoint* point,
@@ -281,6 +280,17 @@ mutable AGGTextRenderer			fTextRenderer;
 };
 
 
+inline BRect
+Painter::ClipRect(BRect rect) const
+{
+	rect.left = floorf(rect.left);
+	rect.top = floorf(rect.top);
+	rect.right = ceilf(rect.right);
+	rect.bottom = ceilf(rect.bottom);
+	return _Clipped(rect);
+}
+
+
 #endif // PAINTER_H