diff --git a/s/websocket-chat/index.html b/s/websocket-chat/index.html
index 13f6bbe..e1499b9 100644
--- a/s/websocket-chat/index.html
+++ b/s/websocket-chat/index.html
@@ -19,7 +19,7 @@
   <div id="userlistbox" style="border: 1px solid black; width:100%; height:100%;"></div>
   </td>
   <td>
-  <iframe width="100%" height="400px" id="chatbox""></iframe>
+  <iframe width="100%" height="400px" id="chatbox"></iframe>
   <tr>
   <td>&nbsp;</td>
   <td>