diff --git a/src/common/xmpp/transports.py b/src/common/xmpp/transports.py
index 0c5b7e897..a9f1f3bbf 100644
--- a/src/common/xmpp/transports.py
+++ b/src/common/xmpp/transports.py
@@ -31,6 +31,7 @@ import socket,select,base64,dispatcher
 from simplexml import ustr
 from client import PlugIn
 from protocol import *
+import sys
 
 # determine which DNS resolution library is available
 HAVE_DNSPYTHON = False