diff --git a/api/apps/user_app.py b/api/apps/user_app.py
index 55f5d293b..31fc68552 100644
--- a/api/apps/user_app.py
+++ b/api/apps/user_app.py
@@ -221,7 +221,7 @@ def user_register(user_id, user):
                            "llm_name": llm.llm_name,
                            "model_type": llm.model_type,
                            "api_key": API_KEY,
-                           "base_url": LLM_BASE_URL
+                           "api_base": LLM_BASE_URL
                            })
 
     if not UserService.save(**user):