diff --git a/api/apps/conversation_app.py b/api/apps/conversation_app.py
index 574cf8421..23fb3b704 100644
--- a/api/apps/conversation_app.py
+++ b/api/apps/conversation_app.py
@@ -41,6 +41,11 @@ def set_conversation():
     req = request.json
     conv_id = req.get("conversation_id")
     is_new = req.get("is_new")
+    name = req.get("name", "New conversation")
+
+    if len(name) > 255:
+        name = name[0:255]
+
     del req["is_new"]
     if not is_new:
         del req["conversation_id"]
@@ -59,7 +64,7 @@ def set_conversation():
         e, dia = DialogService.get_by_id(req["dialog_id"])
         if not e:
             return get_data_error_result(message="Dialog not found")
-        conv = {"id": conv_id, "dialog_id": req["dialog_id"], "name": req.get("name", "New conversation"), "message": [{"role": "assistant", "content": dia.prompt_config["prologue"]}]}
+        conv = {"id": conv_id, "dialog_id": req["dialog_id"], "name": name, "message": [{"role": "assistant", "content": dia.prompt_config["prologue"]}]}
         ConversationService.save(**conv)
         return get_json_result(data=conv)
     except Exception as e: