diff --git a/api/apps/sdk/session.py b/api/apps/sdk/session.py
index 269198560..cdf07b7ed 100644
--- a/api/apps/sdk/session.py
+++ b/api/apps/sdk/session.py
@@ -898,7 +898,7 @@ def ask_about_embedded():
     def stream():
         nonlocal req, uid
         try:
-            for ans in ask(req["question"], req["kb_ids"], uid, search_config):
+            for ans in ask(req["question"], req["kb_ids"], uid, search_config=search_config):
                 yield "data:" + json.dumps({"code": 0, "message": "", "data": ans}, ensure_ascii=False) + "\n\n"
         except Exception as e:
             yield "data:" + json.dumps({"code": 500, "message": str(e), "data": {"answer": "**ERROR**: " + str(e), "reference": []}}, ensure_ascii=False) + "\n\n"