diff --git a/README.md b/README.md
index 51ff28b..27560d5 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,7 @@
 * 支持新[必应](https://www.bing.com/new)（token负载均衡，限流降级）
 * 2023-03-15 API3支持GPT-4尝鲜，需要Plus用户
 * 支持[ChatGLM](https://github.com/THUDM/ChatGLM-6B)模型。基于[自建API](https://github.com/ikechan8370/SimpleChatGLM6BAPI)
+* 2023-04-15 支持[Claude by Slack](https://www.anthropic.com/claude-in-slack )和Poe（WIP）。Cloude配置参考[这里](https://ikechan8370.com/archives/chatgpt-plugin-for-yunzaipei-zhi-slack-claude)
 
 ### 如果觉得这个插件有趣或者对你有帮助，请点一个star吧！
 
diff --git a/apps/chat.js b/apps/chat.js
index 2144ad3..5ad8588 100644
--- a/apps/chat.js
+++ b/apps/chat.js
@@ -559,8 +559,12 @@ export class chatgpt extends plugin {
         let me = mm.get(Bot.uin)
         let card = me.card
         let nickname = me.nickname
-        prompt = prompt.replace(`@${card}`, '').trim()
-        prompt = prompt.replace(`@${nickname}`, '').trim()
+        if (card) {
+          prompt = prompt.replace(`@${card}`, '').trim()
+        }
+        if (nickname) {
+          prompt = prompt.replace(`@${nickname}`, '').trim()
+        }
       }
     } else {
       let ats = e.message.filter(m => m.type === 'at')
@@ -718,7 +722,7 @@ export class chatgpt extends plugin {
           num: 0
         }
       }
-    } else if (use !== 'poe' && use === 'claude') {
+    } else if (use !== 'poe' && use !== 'claude') {
       switch (use) {
         case 'api': {
           key = `CHATGPT:CONVERSATIONS:${e.sender.user_id}`