diff --git a/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.cxx b/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.cxx
index 6ff843838da4a5c56ebe7bad82aaa722b09035ec..08f3c23cb974b1146cd77c7727de44922081fed0 100644
--- a/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.cxx
+++ b/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.cxx
@@ -51,7 +51,7 @@ StatusCode EventCleaningTestAlg::initialize()
 StatusCode EventCleaningTestAlg::execute()
 {
   // Jets
-  const xAOD::JetContainer* jets = 0;
+  const xAOD::JetContainer* jets = nullptr;
   ATH_CHECK( evtStore()->retrieve(jets, m_collection) );
 
   // Apply the event cleaning
@@ -60,7 +60,7 @@ StatusCode EventCleaningTestAlg::execute()
 
   //Decorate event
   if(m_doEvent){
-    const xAOD::EventInfo* eventInfo = 0;
+    const xAOD::EventInfo* eventInfo = nullptr;
     ATH_CHECK( evtStore()->retrieve(eventInfo, "EventInfo") );
     (*m_dec_eventClean)(*eventInfo) = result;
   }
diff --git a/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.h b/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.h
index e5e14f6ac286db36202cba500a684548d99f27ec..d57a5bc73832caf6a049d04b00580169e9f24ffe 100644
--- a/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.h
+++ b/PhysicsAnalysis/JetMissingEtID/JetSelectorTools/src/EventCleaningTestAlg.h
@@ -27,16 +27,16 @@ class EventCleaningTestAlg : public AthAlgorithm
   public:
 
     /// Standard algorithm constructor
-    EventCleaningTestAlg(const std::string& name, ISvcLocator* svcLoc);
+    EventCleaningTestAlg(const std::string& name, ISvcLocator* svcLoc) override;
 
     /// Initialize the algorithm
-    virtual StatusCode initialize();
+    virtual StatusCode initialize() override;
 
     /// Finalize the algorithm
-    virtual StatusCode finalize();
+    virtual StatusCode finalize() override;
 
     /// Execute the algorithm
-    virtual StatusCode execute();
+    virtual StatusCode execute() override;
 
   private: