diff --git a/mozilla/extensions/irc/xul/content/channels.xul b/mozilla/extensions/irc/xul/content/channels.xul
index 60503d8fc41..1dd41d6e34b 100644
--- a/mozilla/extensions/irc/xul/content/channels.xul
+++ b/mozilla/extensions/irc/xul/content/channels.xul
@@ -43,6 +43,7 @@
 <dialog xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
     xmlns:html="http://www.w3.org/1999/xhtml"
     windowtype="irc:chatzilla:channels"
+    id="chatzilla-window"
     buttons="cancel"
     onload="onLoad()"
     onunload="onUnload()"