diff --git a/Event/xAOD/xAODMetaDataCnv/src/FileMetaDataMarkUpTool.h b/Event/xAOD/xAODMetaDataCnv/src/FileMetaDataMarkUpTool.h
index d20cba2aa19b56fabc6e8b6c61dc2cf14d208f67..8e804b5541673f58016f83b9fe820a091332b3c6 100644
--- a/Event/xAOD/xAODMetaDataCnv/src/FileMetaDataMarkUpTool.h
+++ b/Event/xAOD/xAODMetaDataCnv/src/FileMetaDataMarkUpTool.h
@@ -74,10 +74,10 @@ namespace xAODMaker {
       /// @{
 
       /// Function collecting the metadata from a new input file
-      virtual StatusCode beginInputFile();
+      virtual StatusCode beginInputFile() override;
 
       /// Function writing the collected metadata to the output
-      virtual StatusCode metaDataStop();
+      virtual StatusCode metaDataStop() override;
 
       /// @}