diff --git a/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.cxx b/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.cxx
index 1bb2e10493ac0fedf78d6018d5de273b540c4682..019d58741e2512a5decee118d0971952203ca709 100644
--- a/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.cxx
+++ b/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.cxx
@@ -32,7 +32,7 @@ namespace Muon {
     m_csc4dSegmentFinder("Csc4dSegmentMaker/Csc4dSegmentMaker"),
     m_clusterSegmentFinder("Muon::MuonClusterSegmentFinder/MuonClusterSegmentFinder"),
     m_layerHoughTool("Muon::MuonLayerHoughTool/MuonLayerHoughTool"),
-    m_recoValidationTool("Muon::MuonRecoValidationTool/MuonRecoValidationTool")
+    m_recoValidationTool("") // ("Muon::MuonRecoValidationTool/MuonRecoValidationTool")
 
  {
     declareInterface<IMuonLayerSegmentFinderTool>(this);
diff --git a/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.h b/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.h
index 15272f8c8af35d0f614736f1d1857e71a911c612..fc36790ec22d031b69f5ddfc9971143cf0cc0769 100644
--- a/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.h
+++ b/MuonSpectrometer/MuonReconstruction/MuonSegmentMakers/MuonSegmentMakerTools/MuonLayerSegmentMakerTools/src/MuonLayerSegmentFinderTool.h
@@ -75,7 +75,7 @@ namespace Muon {
     ToolHandle<ICscSegmentFinder>                     m_csc4dSegmentFinder;
     ToolHandle<IMuonClusterSegmentFinder>             m_clusterSegmentFinder;
     ToolHandle<MuonLayerHoughTool>                    m_layerHoughTool;
-    ToolHandle<IMuonRecoValidationTool>               m_recoValidationTool;
+    mutable ToolHandle<IMuonRecoValidationTool>               m_recoValidationTool;
     MuonSectorMapping                                 m_muonSectorMapping;
   };
 }