diff --git a/ismism.ts/ui/index.html b/ismism.ts/ui/index.html
index ee1de69..85801ab 100644
--- a/ismism.ts/ui/index.html
+++ b/ismism.ts/ui/index.html
@@ -778,7 +778,9 @@
 				src="https://www.bilibili.com/favicon.ico">未明子</a> ·
 		<a href="https://space.bilibili.com/19147010" target="_blank" rel="noopener"><img
 				src="https://www.bilibili.com/favicon.ico">张正午</a>
-		<span>网站维护：seven.two.eight@outlook.com</span>
+		<span>网站维护：seven.two.eight@outlook.com</span><br>
+		<a href="https://chitchatter.im/public/9e70deaa-d0dd-4a90-8020-4a572d1e2635" target="_blank" rel="noopener"><img
+				src="https://chitchatter.im/favicon.ico">聊天室</a>
 	</footer>
 </body>