diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index d935deb4d6..b9ed3d4995 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -186,7 +186,7 @@ QPaintDevice *QBackingStore::paintDevice()
 void QBackingStore::endPaint()
 {
     if (paintDevice()->paintingActive())
-        qWarning() << "QBackingStore::endPaint() called with active painter on backingstore paint device";
+        qWarning("QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?");
 
     handle()->endPaint();
 }