diff --git a/backend/llm_client_backend.py b/backend/llm_client_backend.py
index d4f00c1..5dba3dc 100644
--- a/backend/llm_client_backend.py
+++ b/backend/llm_client_backend.py
@@ -284,6 +284,7 @@ class LlmClientBackend(BaseModelBackend):
                             }
                         # Add normal completion marker
                         yield {
+                            "object": "chat.completion.chunk",
                             "choices": [{
                                 "delta": {},
                                 "finish_reason": "stop"