diff --git a/pilot/server/llmserver.py b/pilot/server/llmserver.py
index ba3df420d..2860c3b77 100644
--- a/pilot/server/llmserver.py
+++ b/pilot/server/llmserver.py
@@ -101,15 +101,16 @@ def generate(prompt_request: PromptRequest):
         "stop": prompt_request.stop
     }
 
-    response = []
+    response = [] 
+    rsp_str = ""
     output = generate_stream_gate(params)
-    for o in output:
-        print(o)
-        response.append(o)
-    
-    rsp = "".join(response)
-    print("rsp:",rsp) 
-    return {"response": rsp}
+    for rsp in output:
+        # rsp = rsp.decode("utf-8")
+        rsp_str = str(rsp, "utf-8")
+        print("[TEST: output]:", rsp_str)
+        response.append(rsp_str)
+
+    return {"response": rsp_str}
     
 
 @app.post("/embedding")