diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 47efc984745..542b95f58fe 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -1489,6 +1489,7 @@ void QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePriv
 #endif
     case QWindowSystemInterfacePrivate::EnterWhatsThisMode:
         QGuiApplication::postEvent(QGuiApplication::instance(), new QEvent(QEvent::EnterWhatsThisMode));
+        break;
     default:
         qWarning() << "Unknown user input event type:" << e->type;
         break;