diff --git a/comps/cores/mega/gateway.py b/comps/cores/mega/gateway.py
index 29962df14..7d075eae0 100644
--- a/comps/cores/mega/gateway.py
+++ b/comps/cores/mega/gateway.py
@@ -274,6 +274,7 @@ async def handle_request(self, request: Request):
             presence_penalty=chat_request.presence_penalty if chat_request.presence_penalty else 0.0,
             repetition_penalty=chat_request.repetition_penalty if chat_request.repetition_penalty else 1.2,
             streaming=stream_opt,
+            model=chat_request.model if chat_request.model else None,
         )
         result_dict, runtime_graph = await self.megaservice.schedule(
             initial_inputs={"query": prompt}, llm_parameters=parameters