diff --git a/src/gui/painting/qdatabuffer_p.h b/src/gui/painting/qdatabuffer_p.h
index 0a4a3d5c9e..3fe39efdde 100644
--- a/src/gui/painting/qdatabuffer_p.h
+++ b/src/gui/painting/qdatabuffer_p.h
@@ -53,6 +53,7 @@ QT_BEGIN_NAMESPACE
 
 template <typename Type> class QDataBuffer
 {
+    Q_DISABLE_COPY(QDataBuffer);
 public:
     QDataBuffer(int res)
     {