diff --git a/src/DockAreaWidget.h b/src/DockAreaWidget.h
index 30701fb..e0c39c7 100644
--- a/src/DockAreaWidget.h
+++ b/src/DockAreaWidget.h
@@ -38,6 +38,7 @@
 
 QT_FORWARD_DECLARE_CLASS(QXmlStreamWriter)
 QT_FORWARD_DECLARE_CLASS(QAbstractButton)
+QT_FORWARD_DECLARE_CLASS(QMenu)
 
 namespace ads
 {
diff --git a/src/DockWidgetTab.h b/src/DockWidgetTab.h
index 973a1ad..9db1495 100644
--- a/src/DockWidgetTab.h
+++ b/src/DockWidgetTab.h
@@ -35,6 +35,8 @@
 
 #include "ads_globals.h"
 
+QT_FORWARD_DECLARE_CLASS(QMenu)
+
 namespace ads
 {
 class CDockWidget;