diff --git a/Plugins/org.mitk.gui.qt.rdftriplestore/src/internal/org_mitk_gui_qt_rdftriplestore_Activator.h b/Plugins/org.mitk.gui.qt.rdftriplestore/src/internal/org_mitk_gui_qt_rdftriplestore_Activator.h
index 9a2d65ebfa..fcbb44a759 100644
--- a/Plugins/org.mitk.gui.qt.rdftriplestore/src/internal/org_mitk_gui_qt_rdftriplestore_Activator.h
+++ b/Plugins/org.mitk.gui.qt.rdftriplestore/src/internal/org_mitk_gui_qt_rdftriplestore_Activator.h
@@ -1,42 +1,43 @@
 /*===================================================================
 
 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 org_mitk_gui_qt_rdftriplestore_Activator_h
 #define org_mitk_gui_qt_rdftriplestore_Activator_h
 
 #include <ctkPluginActivator.h>
+#include <mitkCommon.h>
 
 namespace mitk {
 
   class MITK_LOCAL org_mitk_gui_qt_rdftriplestore_Activator :
     public QObject, public ctkPluginActivator
   {
     Q_OBJECT
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
     Q_PLUGIN_METADATA(IID "org_mitk_gui_qt_rdftriplestore")
 #endif
     Q_INTERFACES(ctkPluginActivator)
 
   public:
 
     void start(ctkPluginContext* context);
     void stop(ctkPluginContext* context);
 
   }; // org_mitk_gui_qt_rdftriplestore_Activator
 
 } // end of namespace mitk
 
 #endif // org_mitk_gui_qt_rdftriplestore_Activator_h