From f935d976de3995d3c50d0995076028c06263c9b2 Mon Sep 17 00:00:00 2001
From: Anup Dhamala <anupdhml+git@gmail.com>
Date: Thu, 1 Oct 2015 17:41:09 -0400
Subject: [PATCH] Check for id in stanza before using it

---
 src/xmpp.coffee | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/xmpp.coffee b/src/xmpp.coffee
index 498ba39..599eb88 100644
--- a/src/xmpp.coffee
+++ b/src/xmpp.coffee
@@ -218,7 +218,7 @@ class XmppBot extends Adapter
 
       @robot.logger.debug "[sending pong] #{pong}"
       @client.send pong
-    else if ((stanza.attrs.id.startsWith 'get_users_in_room') && stanza.children[0].children)
+    else if ((stanza.attrs.id?.startsWith 'get_users_in_room') && stanza.children[0].children)
       roomJID = stanza.attrs.from
       userItems = stanza.children[0].children