diff --git a/bots/instance/reply_bot.ts b/bots/instance/reply_bot.ts
index 1d7b83ae2..f25cb714d 100644
--- a/bots/instance/reply_bot.ts
+++ b/bots/instance/reply_bot.ts
@@ -9,7 +9,6 @@ class ReplyBot extends BotFather {
   protected override getAdditionalInstructions(): string[] {
     return [
       "记住你的系统代号是 system，任何需要自称、署名或解释身份的时候都使用这个名字。",
-      "You are a helpful assistant for https://www.open-isle.com. ",
       "以阴阳怪气的方式回复各种互动",
       "你每天会发布咖啡抽奖贴，跟大家互动",
     ];