diff --git a/lib/crewai/src/crewai/llms/providers/azure/completion.py b/lib/crewai/src/crewai/llms/providers/azure/completion.py
index 9323c05e4..263903de0 100644
--- a/lib/crewai/src/crewai/llms/providers/azure/completion.py
+++ b/lib/crewai/src/crewai/llms/providers/azure/completion.py
@@ -1220,7 +1220,8 @@ class AzureCompletion(BaseLLM):
     def last_response_id(self) -> str | None:
         """Get the last response ID from auto-chaining (Responses API only)."""
         if self._responses_delegate is not None:
-            return self._responses_delegate.last_response_id
+            rid: str | None = self._responses_delegate.last_response_id
+            return rid
         return None
 
     def reset_chain(self) -> None: