diff --git a/MuonSpectrometer/MuonReconstruction/MuonRecTools/MuonRecToolInterfaces/MuonRecToolInterfaces/IMuonTrackBuilder.h b/MuonSpectrometer/MuonReconstruction/MuonRecTools/MuonRecToolInterfaces/MuonRecToolInterfaces/IMuonTrackBuilder.h
index 59ac1cd14fa1ac96a9ec2681eaddb98b57443156..e3f2d54b50b04693de73d2b3ccaa0942fd2573c3 100644
--- a/MuonSpectrometer/MuonReconstruction/MuonRecTools/MuonRecToolInterfaces/MuonRecToolInterfaces/IMuonTrackBuilder.h
+++ b/MuonSpectrometer/MuonReconstruction/MuonRecTools/MuonRecToolInterfaces/MuonRecToolInterfaces/IMuonTrackBuilder.h
@@ -45,6 +45,8 @@ namespace Muon {
     */
     virtual std::vector<std::unique_ptr<MuPatTrack> > find( MuPatCandidateBase& candidate, const std::vector<MuPatSegment*>& segments ) const = 0;
 
+
+    virtual void cleanUp() const {};
   };
   
   inline const InterfaceID& IMuonTrackBuilder::interfaceID()
diff --git a/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.cxx b/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.cxx
index cfcdbfdefc4cb8bbbfe9209877712f8256b41f93..16904d597d0171ae7d90bb02969facf4b4b3193e 100644
--- a/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.cxx
+++ b/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.cxx
@@ -1518,4 +1518,9 @@ namespace Muon {
     return newTracks;
   }
 
+  void MooTrackBuilder::cleanUp() const {
+    m_candidateHandler->cleanUp();
+
+  }
+
 }
diff --git a/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.h b/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.h
index cb0243f379c6d22d598645a7a6fbc94ec755dcde..dcac0e533570744afaca645f57853fd701c0e152 100644
--- a/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.h
+++ b/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MooTrackBuilder.h
@@ -246,6 +246,9 @@ namespace Muon {
     */
     virtual void refine( MuPatTrack& track ) const override;
 
+    void cleanUp() const;
+
+
   private:
 
     void removeDuplicateWithReference( std::unique_ptr<Trk::SegmentCollection>& segments,
diff --git a/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MuonTrackSteering.cxx b/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MuonTrackSteering.cxx
index 8f48e5efb22cb12b44eaaa7a5f6350c1cff9795a..f090d9a3b98a88fc12ea2f552d492c6f97c27d22 100644
--- a/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MuonTrackSteering.cxx
+++ b/MuonSpectrometer/MuonReconstruction/MuonTrackMakers/MuonTrackMakerTools/MuonTrackSteeringTools/src/MuonTrackSteering.cxx
@@ -138,6 +138,11 @@ namespace Muon {
 
     // clean up entry handler tool
     m_candidateTool->cleanUp();
+
+    // clean up track builder tools
+    m_mooBTool->cleanUp();
+    m_trackBTool->cleanUp();
+    
   }
 
   //-----------------------------------------------------------------------------------------------------------