diff --git a/Plugins/org.mitk.gui.qt.datamanager/src/mitkIContextMenuAction.h b/Plugins/org.mitk.gui.qt.datamanager/src/mitkIContextMenuAction.h
index e2b283bb39..fa3dabbc5c 100644
--- a/Plugins/org.mitk.gui.qt.datamanager/src/mitkIContextMenuAction.h
+++ b/Plugins/org.mitk.gui.qt.datamanager/src/mitkIContextMenuAction.h
@@ -1,55 +1,53 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 #ifndef mitkIContextMenuAction_H_
 #define mitkIContextMenuAction_H_
 
 #include <berryMacros.h>
 #include <berryQtViewPart.h>
 
 #include <vector>
 #include <mitkDataNode.h>
 #include "mitkDataStorage.h"
 
-class QmitkStdMultiWidget;
-
 namespace mitk
 {
   /**
   * A context menu action, which is linked to the context menu <br>
   * through an extension point. For an example check the <br>
   * <code> plugin.xml </code> and the connected classes of <br>
   * the the segmentation bundle and also the <code> QmitkDataManagerView.cpp </code> <br>
   * in this bundle.
   */
   struct IContextMenuAction
   {
 
       /**
       * @brief Executes the action, that linked to the context menu entry.
       */
       virtual void Run( const QList<mitk::DataNode::Pointer>& selectedNodes ) = 0;
 
     // Setters
     virtual void SetDataStorage(mitk::DataStorage* dataStorage) = 0;
     virtual void SetSmoothed(bool smoothed) = 0;
     virtual void SetDecimated(bool decimated) = 0;
     virtual void SetFunctionality(berry::QtViewPart* functionality) = 0;
   };
 }
 
 Q_DECLARE_INTERFACE(mitk::IContextMenuAction, "org.mitk.datamanager.IContextMenuAction")
 
 #endif // mitkIContextMenuAction_H_