diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index c89bb9a833..9cb5ab9099 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -79,7 +79,7 @@ class QRegularExpression;
 #ifndef QT_NO_USERDATA
 class QObjectUserData;
 #endif
-class QDynamicMetaObjectData;
+struct QDynamicMetaObjectData;
 
 typedef QList<QObject*> QObjectList;