diff --git a/src/plugins/coreplugin/actionmanager/actionmanager.h b/src/plugins/coreplugin/actionmanager/actionmanager.h
index 58f83160b02e45dc6c3bf989108bf5aff138ca38..eca4b8778949cf3e79e59ac12b6e7b747b0a7be6 100644
--- a/src/plugins/coreplugin/actionmanager/actionmanager.h
+++ b/src/plugins/coreplugin/actionmanager/actionmanager.h
@@ -31,6 +31,7 @@
 #define ACTIONMANAGER_H
 
 #include "coreplugin/core_global.h"
+#include "coreplugin/uniqueidmanager.h"
 
 #include <QtCore/QObject>
 #include <QtCore/QList>
@@ -46,7 +47,6 @@ namespace Core {
 class ActionContainer;
 class Command;
 class Context;
-class Id;
 
 class CORE_EXPORT ActionManager : public QObject
 {