diff --git a/src/corelib/serialization/qdatastream.h b/src/corelib/serialization/qdatastream.h
index 69a7765064..e5ae55402a 100644
--- a/src/corelib/serialization/qdatastream.h
+++ b/src/corelib/serialization/qdatastream.h
@@ -157,6 +157,7 @@ public:
     QDataStream &operator<<(const char *str);
     QDataStream &operator<<(char16_t c);
     QDataStream &operator<<(char32_t c);
+    QDataStream &operator<<(const volatile void *) = delete;
 
 
     QDataStream &readBytes(char *&, uint &len);