diff --git a/src/corelib/serialization/qdatastream.h b/src/corelib/serialization/qdatastream.h
index 90d7c9d9da2..6c67753ecda 100644
--- a/src/corelib/serialization/qdatastream.h
+++ b/src/corelib/serialization/qdatastream.h
@@ -240,6 +240,7 @@ namespace QtPrivate {
 
 class StreamStateSaver
 {
+    Q_DISABLE_COPY_MOVE(StreamStateSaver)
 public:
     inline StreamStateSaver(QDataStream *s) : stream(s), oldStatus(s->status())
     {