diff --git a/assets/batch_score/components/driver/src/batch_score_oss/utils/v2_output_formatter.py b/assets/batch_score/components/driver/src/batch_score_oss/utils/v2_output_formatter.py
index 9ba1ca2ab4..f1314bf30f 100644
--- a/assets/batch_score/components/driver/src/batch_score_oss/utils/v2_output_formatter.py
+++ b/assets/batch_score/components/driver/src/batch_score_oss/utils/v2_output_formatter.py
@@ -75,9 +75,9 @@ def format_output(self, results: "list[ScoringResult]", batch_size_per_request:
 
     def __get_request_id(self, scoring_request: ScoringResult):
         return (
-            scoring_request.response_headers.get("x-request-id", "")
+            scoring_request.response_headers.get("x-request-id", None)
             if scoring_request.response_headers is not None
-            else ""
+            else None
         )
 
     def _get_response_obj(self, result: dict):