diff --git a/Trigger/TrigAlgorithms/TrigL2MuonSA/src/PtBarrelLUTSvc.h b/Trigger/TrigAlgorithms/TrigL2MuonSA/src/PtBarrelLUTSvc.h
index eb1c292dd2941c2e74f7c2173e2febd8a2ff9380..3ee66acc9dfd497c1d739dc2299b966bb365e666 100644
--- a/Trigger/TrigAlgorithms/TrigL2MuonSA/src/PtBarrelLUTSvc.h
+++ b/Trigger/TrigAlgorithms/TrigL2MuonSA/src/PtBarrelLUTSvc.h
@@ -27,7 +27,7 @@ namespace TrigL2MuonSA {
   public:
     PtBarrelLUTSvc(const std::string& name,ISvcLocator* sl);
     
-    virtual StatusCode queryInterface(const InterfaceID& riid,void** ppvIF);
+    virtual StatusCode queryInterface(const InterfaceID& riid,void** ppvIF) override;
     
     virtual StatusCode initialize(void) override;