diff --git a/src/plugins/qmlprojectmanager/fileformat/filefilteritems.h b/src/plugins/qmlprojectmanager/fileformat/filefilteritems.h
index 24744b72426..90178927f19 100644
--- a/src/plugins/qmlprojectmanager/fileformat/filefilteritems.h
+++ b/src/plugins/qmlprojectmanager/fileformat/filefilteritems.h
@@ -104,11 +104,9 @@ public:
 
 } // namespace QmlProjectManager
 
-QT_BEGIN_NAMESPACE
 QML_DECLARE_TYPE(QmlProjectManager::QmlFileFilterItem)
 QML_DECLARE_TYPE(QmlProjectManager::JsFileFilterItem)
 QML_DECLARE_TYPE(QmlProjectManager::ImageFileFilterItem)
 QML_DECLARE_TYPE(QmlProjectManager::CssFileFilterItem)
-QT_END_NAMESPACE
 
 #endif // FILEFILTERITEMS_HPROJECTITEM_H
diff --git a/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h b/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h
index 58bff010d9c..ade9791b5f2 100644
--- a/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h
+++ b/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h
@@ -53,10 +53,8 @@ protected:
 
 } // namespace QmlProjectManager
 
-QT_BEGIN_NAMESPACE
 QML_DECLARE_TYPE(QmlProjectManager::QmlProjectItem);
 QML_DECLARE_TYPE(QmlProjectManager::QmlProjectContentItem);
-QT_END_NAMESPACE
 Q_DECLARE_METATYPE(QList<QmlProjectManager::QmlProjectContentItem *>);