diff --git a/Tracking/Acts/ActsGeometry/ActsGeometry/ActsSurfaceMappingTool.h b/Tracking/Acts/ActsGeometry/ActsGeometry/ActsSurfaceMappingTool.h
index c2174e4fe61327ff4e6070097cbb3b0828930d07..95e225b023cce7ede305185212cd48cb7367c004 100644
--- a/Tracking/Acts/ActsGeometry/ActsGeometry/ActsSurfaceMappingTool.h
+++ b/Tracking/Acts/ActsGeometry/ActsGeometry/ActsSurfaceMappingTool.h
@@ -31,8 +31,9 @@ public:
   ActsSurfaceMappingTool(const std::string& type, const std::string& name,
 	           const IInterface* parent);
 
+  virtual
   std::shared_ptr<Acts::SurfaceMaterialMapper>
-  mapper() const
+  mapper() const override
   {
     return m_mapper;
   };
diff --git a/Trigger/TrigAlgorithms/TrigL2MuonSA/TrigL2MuonSA/PtEndcapLUTSvc.h b/Trigger/TrigAlgorithms/TrigL2MuonSA/TrigL2MuonSA/PtEndcapLUTSvc.h
index 936393e4d4a1906965ef76d35cf93cf781650f86..89d28c26e1d573b258a836dd71f4e98e59f5a4a1 100644
--- a/Trigger/TrigAlgorithms/TrigL2MuonSA/TrigL2MuonSA/PtEndcapLUTSvc.h
+++ b/Trigger/TrigAlgorithms/TrigL2MuonSA/TrigL2MuonSA/PtEndcapLUTSvc.h
@@ -31,7 +31,7 @@ class PtEndcapLUTSvc : public AthService, virtual public IInterface
     PtEndcapLUTSvc(const std::string& name, ISvcLocator* sl);
     virtual ~PtEndcapLUTSvc() {}
     
-    virtual StatusCode queryInterface(const InterfaceID& riid, void** ppvIF);
+    virtual StatusCode queryInterface(const InterfaceID& riid, void** ppvIF) override;
 
     virtual StatusCode initialize() override;