diff --git a/sources/diagram.cpp b/sources/diagram.cpp
index 97debbe46..98d43f4ec 100644
--- a/sources/diagram.cpp
+++ b/sources/diagram.cpp
@@ -21,13 +21,9 @@
 #include "TerminalStrip/GraphicsItem/terminalstripitem.h"
 #include "xml/terminalstripitemxml.h"
 #include "QPropertyUndoCommand/qpropertyundocommand.h"
-#include "diagramcommands.h"
 #include "diagramcontent.h"
 #include "diagramevent/diagrameventinterface.h"
 #include "diagramposition.h"
-#include "diagramview.h"
-#include "elementprovider.h"
-#include "exportdialog.h"
 #include "factory/elementfactory.h"
 #include "qetapp.h"
 #include "qetgraphicsitem/ViewItem/qetgraphicstableitem.h"