diff --git a/python/packages/autogen-ext/src/autogen_ext/models/openai/_message_transform.py b/python/packages/autogen-ext/src/autogen_ext/models/openai/_message_transform.py
index 779989ed4..edcbcabe4 100644
--- a/python/packages/autogen-ext/src/autogen_ext/models/openai/_message_transform.py
+++ b/python/packages/autogen-ext/src/autogen_ext/models/openai/_message_transform.py
@@ -281,7 +281,6 @@ base_user_transformer_funcs: List[Callable[[LLMMessage, Dict[str, Any]], Dict[st
 
 base_assistant_transformer_funcs: List[Callable[[LLMMessage, Dict[str, Any]], Dict[str, Any]]] = [
     _assert_valid_name,
-    _set_name,
     _set_role("assistant"),
 ]