diff --git a/LumiBlock/LumiBlockComps/Root/LumiBlockMetaDataTool.h b/LumiBlock/LumiBlockComps/Root/LumiBlockMetaDataTool.h
index 653fe5b3f84fbff74767c03e03edf271f77f9778..fb954daf2c1e24564c515e2b502bd65e08a5ddc3 100644
--- a/LumiBlock/LumiBlockComps/Root/LumiBlockMetaDataTool.h
+++ b/LumiBlock/LumiBlockComps/Root/LumiBlockMetaDataTool.h
@@ -41,13 +41,13 @@ class LumiBlockMetaDataTool
    virtual StatusCode finalize() override;
 
    /// Function collecting the metadata from a new input file
-   virtual StatusCode beginInputFile(const SG::SourceID&);
+   virtual StatusCode beginInputFile(const SG::SourceID&) override;
 
    /// Function collecting the metadata from a new input file
-   virtual StatusCode endInputFile(const SG::SourceID&);
+   virtual StatusCode endInputFile(const SG::SourceID&) override;
 
    /// Function writing the collected metadata to the output
-   virtual StatusCode metaDataStop();
+   virtual StatusCode metaDataStop() override;
 
  private:
    /// Fill metaDataStore and ntuples