diff --git a/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CaloTimeFilterTool.h b/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CaloTimeFilterTool.h
index 06f7e6f25d2747602c9803cbfb3562b6601dda27..3ae1653831f40374a143e56b1696a0e62cabecd5 100644
--- a/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CaloTimeFilterTool.h
+++ b/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CaloTimeFilterTool.h
@@ -20,11 +20,11 @@ class CaloTimeFilterTool : public asg::AsgTool, virtual public ICaloTimeFilterTo
     virtual ~CaloTimeFilterTool() = default;
     
   
-  /** Overriding initialize and finalize */
+  virtual
   StatusCode getTimeDifference(TimingFilterInformation& time_info, const SG::ReadHandleKey<LArCollisionTime>& read_key,
                                          const EventContext& ctx) const override;
  
-  StatusCode getTimeDifference(TimingFilterInformation& time_info);
+  virtual StatusCode getTimeDifference(TimingFilterInformation& time_info) override;
  
  protected:
   
diff --git a/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CollisionFilterAlg.h b/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CollisionFilterAlg.h
index 684fc8c93cc66af0bbe0ee8eb2ee288565c7b0d0..df0aa0525944b831cbbfb8c66d3b147557df334b 100644
--- a/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CollisionFilterAlg.h
+++ b/PhysicsAnalysis/PrimaryDPDMaker/PrimaryDPDMaker/CollisionFilterAlg.h
@@ -23,9 +23,9 @@ class CollisionFilterAlg : public AthReentrantAlgorithm
   CollisionFilterAlg( const std::string& name, ISvcLocator* pSvcLocator );
   virtual ~CollisionFilterAlg()=default; 
 
-  StatusCode initialize() override ;
-  StatusCode execute(const EventContext& ctx) const ;
-  StatusCode finalize() override;
+  virtual StatusCode initialize() override ;
+  virtual StatusCode execute(const EventContext& ctx) const override;
+  virtual StatusCode finalize() override;
 
  private: