diff --git a/src/corelib/serialization/qdatastream.h b/src/corelib/serialization/qdatastream.h
index b01a785ddc..616f6330d9 100644
--- a/src/corelib/serialization/qdatastream.h
+++ b/src/corelib/serialization/qdatastream.h
@@ -177,6 +177,8 @@ public:
     QDataStream &operator<<(char16_t c);
     QDataStream &operator<<(char32_t c);
     QDataStream &operator<<(const volatile void *) = delete;
+    template <typename T, typename C>
+    QDataStream &operator<<(T C::*) = delete;
 
 #if QT_DEPRECATED_SINCE(6, 11)
     QT_DEPRECATED_VERSION_X_6_11("Use an overload that takes qint64 length.")