diff --git a/nonebot_plugin_marshoai/azure.py b/nonebot_plugin_marshoai/azure.py
index 64e849f..63e5e51 100644
--- a/nonebot_plugin_marshoai/azure.py
+++ b/nonebot_plugin_marshoai/azure.py
@@ -157,7 +157,7 @@ async def marsho(target: MsgTarget, event: Event, text: Optional[UniMsg] = None)
         user_id = event.get_user_id()
         nicknames = await get_nicknames()
         user_nickname = nicknames.get(user_id, "")
-        if nickname != "":
+        if user_nickname != "":
             nickname_prompt = f"\n*此消息的说话者:{user_nickname}*"
         else:
             nickname_prompt = ""