diff --git a/Tracking/TrkEvent/TrkCompetingRIOsOnTrack/TrkCompetingRIOsOnTrack/CompetingRIOsOnTrack.h b/Tracking/TrkEvent/TrkCompetingRIOsOnTrack/TrkCompetingRIOsOnTrack/CompetingRIOsOnTrack.h
index a2ee9dc0398e3fdccbd13abf5efe395fedb03709..042cb3a2fb3d8116a5794789f22a9ecd6fe27a3f 100755
--- a/Tracking/TrkEvent/TrkCompetingRIOsOnTrack/TrkCompetingRIOsOnTrack/CompetingRIOsOnTrack.h
+++ b/Tracking/TrkEvent/TrkCompetingRIOsOnTrack/TrkCompetingRIOsOnTrack/CompetingRIOsOnTrack.h
@@ -107,7 +107,8 @@ public:
     virtual void setLocalParametersAndErrorMatrix();
 
     /** Extended method checking the type*/
-    virtual bool type(MeasurementBaseType::Type type) const override{
+    virtual bool type(MeasurementBaseType::Type type) const override final
+    {
       return (type==MeasurementBaseType::CompetingRIOsOnTrack);
     }
 
diff --git a/Tracking/TrkEvent/TrkSegment/TrkSegment/Segment.h b/Tracking/TrkEvent/TrkSegment/TrkSegment/Segment.h
index 615a068fea061d1dd2a52ee5b023c5e926734b17..c3fdb11539bd7151bd49f6292e6a03f0ab87fff9 100755
--- a/Tracking/TrkEvent/TrkSegment/TrkSegment/Segment.h
+++ b/Tracking/TrkEvent/TrkSegment/TrkSegment/Segment.h
@@ -98,7 +98,8 @@ class FitQuality;
       virtual Segment* clone() const override = 0;
       
       /** Extended method checking the type*/
-      virtual bool type(MeasurementBaseType::Type type) const override {
+      virtual bool type(MeasurementBaseType::Type type) const override final
+      {
         return (type==MeasurementBaseType::Segment);
       }
 
diff --git a/Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h b/Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h
index b299db70c05b1f0d4aa1b846ec2495e0f721ff20..b9c120e2cb2b1862c74d6acd515689562349652c 100755
--- a/Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h
+++ b/Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h
@@ -69,16 +69,17 @@ namespace Trk{
     double phi() const ;
 	
     /**Interface method to get the associated Surface*/
-    virtual const Surface& associatedSurface() const override;
+    virtual const Surface& associatedSurface() const override final;
        
     /**Interface method to get the global Position*/
-    virtual const Amg::Vector3D& globalPosition() const override;
+    virtual const Amg::Vector3D& globalPosition() const override final; 
        
     /** Clone */
     virtual SpacePoint* clone() const override = 0;       
 
     /** Extended method checking the type*/
-    virtual bool type(MeasurementBaseType::Type type) const override {
+    virtual bool type(MeasurementBaseType::Type type) const override final
+    {
       return (type==MeasurementBaseType::SpacePoint);
     }
 
diff --git a/Tracking/TrkEvent/TrkVertexOnTrack/TrkVertexOnTrack/VertexOnTrack.h b/Tracking/TrkEvent/TrkVertexOnTrack/TrkVertexOnTrack/VertexOnTrack.h
index 5513804ae714e3d295a4f3921fb5e2b48080780f..2e43e2cf55b6e6ca550f700e7b5b038208aad986 100755
--- a/Tracking/TrkEvent/TrkVertexOnTrack/TrkVertexOnTrack/VertexOnTrack.h
+++ b/Tracking/TrkEvent/TrkVertexOnTrack/TrkVertexOnTrack/VertexOnTrack.h
@@ -69,18 +69,18 @@ namespace Trk{
 
       /** returns the surface for the local to global transformation 
       - interface from MeasurementBase */
-      virtual const PerigeeSurface& associatedSurface() const override;
+      virtual const PerigeeSurface& associatedSurface() const override final;
 
       /**Interface method to get the global Position
       - interface from MeasurementBase */
-      virtual const Amg::Vector3D& globalPosition() const override;
+      virtual const Amg::Vector3D& globalPosition() const override final;
 
       /** Extended method checking the type*/
-      virtual bool type(MeasurementBaseType::Type type) const override {
+      virtual bool type(MeasurementBaseType::Type type) const override final
+      {
         return (type==MeasurementBaseType::VertexOnTrack);
       }
 
-
       /**returns the some information about this VertexOnTrack. */
       virtual MsgStream&    dump( MsgStream& out ) const override;
       /**returns the some information about this VertexOnTrack. */