diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index a494369c5d5..4262c14405e 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -1825,6 +1825,8 @@ void QCoreApplicationPrivate::sendPostedEvents(QObject *receiver, int event_type
 
     // Exception-safe cleaning up without the need for a try/catch block
     struct CleanUp {
+        Q_DISABLE_COPY_MOVE(CleanUp)
+
         QObject *receiver;
         int event_type;
         QThreadData *data;