diff --git a/client/src/widget/objectlist/stackedobjectlistwidget.hpp b/client/src/widget/objectlist/stackedobjectlistwidget.hpp
index 5d35a575..c91a6070 100644
--- a/client/src/widget/objectlist/stackedobjectlistwidget.hpp
+++ b/client/src/widget/objectlist/stackedobjectlistwidget.hpp
@@ -32,6 +32,7 @@ class QToolBar;
 class QStackedWidget;
 class QListView;
 class QLabel;
+class QMenu;
 class MethodIcon;
 class MethodAction;