diff --git a/python/packages/core/agent_framework/openai/_assistants_client.py b/python/packages/core/agent_framework/openai/_assistants_client.py
index 319ad95231..38ad9eabb3 100644
--- a/python/packages/core/agent_framework/openai/_assistants_client.py
+++ b/python/packages/core/agent_framework/openai/_assistants_client.py
@@ -437,7 +437,10 @@ def _prepare_options(
             if chat_options.response_format is not None:
                 run_options["response_format"] = {
                     "type": "json_schema",
-                    "json_schema": chat_options.response_format.model_json_schema(),
+                    "json_schema": {
+                        "name": chat_options.response_format.__name__,
+                        "schema": chat_options.response_format.model_json_schema(),
+                    },
                 }
 
         instructions: list[str] = []