diff --git a/Plugins/org.mitk.gui.qt.properties/src/internal/QmitkPropertyTreeView.h b/Plugins/org.mitk.gui.qt.properties/src/internal/QmitkPropertyTreeView.h
index d1f2f2eaf9..424843b71c 100644
--- a/Plugins/org.mitk.gui.qt.properties/src/internal/QmitkPropertyTreeView.h
+++ b/Plugins/org.mitk.gui.qt.properties/src/internal/QmitkPropertyTreeView.h
@@ -1,87 +1,87 @@
 /*===================================================================
 
 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 QmitkPropertyTreeView_h
 #define QmitkPropertyTreeView_h
 
 #include <mitkDataNode.h>
 #include <mitkIRenderWindowPartListener.h>
 #include <QmitkAbstractView.h>
 #include <ui_QmitkPropertyTreeView.h>
 
 class QmitkPropertyItemDelegate;
 class QmitkPropertyItemModel;
 class QmitkPropertyItemSortFilterProxyModel;
 
 namespace mitk
 {
   class IPropertyAliases;
   class IPropertyDescriptions;
   class IPropertyPersistence;
 }
 
 class QmitkPropertyTreeView : public QmitkAbstractView, public mitk::IRenderWindowPartListener
 {
   Q_OBJECT
 
 public:
   static const std::string VIEW_ID;
 
   berryObjectMacro(QmitkPropertyTreeView);
 
   QmitkPropertyTreeView();
   ~QmitkPropertyTreeView();
 
   void SetFocus() override;
 
   void RenderWindowPartActivated(mitk::IRenderWindowPart* renderWindowPart) override;
   void RenderWindowPartDeactivated(mitk::IRenderWindowPart*) override;
 
 protected:
   void CreateQtPartControl(QWidget* parent) override;
 
 private:
   QString GetPropertyNameOrAlias(const QModelIndex& index);
   void OnPreferencesChanged(const berry::IBerryPreferences* preferences) override;
   void OnPropertyNameChanged(const itk::EventObject& event);
-  void OnSelectionChanged(berry::IWorkbenchPart::Pointer part, const QList<mitk::DataNode::Pointer>& nodes) override;
+  virtual void OnSelectionChanged(berry::IWorkbenchPart::Pointer part, const QList<mitk::DataNode::Pointer>& nodes) override;
 
 private slots:
   void OnCurrentRowChanged(const QModelIndex& current, const QModelIndex& previous);
   void OnPropertyListChanged(int index);
   void OnAddNewProperty();
   void OnFilterTextChanged(const QString& filter);
   void OnModelReset();
 
 private:
   QWidget* m_Parent;
   unsigned long m_PropertyNameChangedTag;
   std::string m_SelectionClassName;
   mitk::IPropertyAliases* m_PropertyAliases;
   mitk::IPropertyDescriptions* m_PropertyDescriptions;
   mitk::IPropertyPersistence* m_PropertyPersistence;
   bool m_ShowAliasesInDescription;
   bool m_ShowPersistenceInDescription;
   bool m_DeveloperMode;
   Ui::QmitkPropertyTreeView m_Controls;
   QmitkPropertyItemSortFilterProxyModel* m_ProxyModel;
   QmitkPropertyItemModel* m_Model;
   QmitkPropertyItemDelegate* m_Delegate;
   mitk::DataNode::Pointer m_SelectedNode;
   mitk::BaseRenderer* m_Renderer;
 };
 
 #endif