diff --git a/src/libs/modelinglib/qmt/tasks/ielementtasks.h b/src/libs/modelinglib/qmt/tasks/ielementtasks.h
index 0851dddeb75..b2ae12cc6c7 100644
--- a/src/libs/modelinglib/qmt/tasks/ielementtasks.h
+++ b/src/libs/modelinglib/qmt/tasks/ielementtasks.h
@@ -25,8 +25,12 @@
 
 #pragma once
 
+#include <QtCore/qglobal.h>
+
+QT_BEGIN_NAMESPACE
 class QMenu;
 class QString;
+QT_END_NAMESPACE
 
 namespace qmt {