diff --git a/docs/index.html b/docs/index.html
index bd11a15..c59de98 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -107,6 +107,13 @@
       })
   </script>
 
+  <script>
+    ((window.gitter = {}).chat = {}).options = {
+      room: 'yadong-zhang/justauth'
+    };
+  </script>
+  <script src="https://sidecar.gitter.im/dist/sidecar.v1.js" async defer></script>
+
   <!-- 百度统计 -->
   <script>
     var _hmt = _hmt || [];