diff --git a/sleekxmpp/clientxmpp.py b/sleekxmpp/clientxmpp.py
index c8c389f6..6bcb36ba 100644
--- a/sleekxmpp/clientxmpp.py
+++ b/sleekxmpp/clientxmpp.py
@@ -155,8 +155,6 @@ class ClientXMPP(BaseXMPP):
             address = (self.boundjid.host, 5222)
             self.dns_service = 'xmpp-client'
 
-        self._expected_server_name = self.boundjid.host
-
         return XMLStream.connect(self, address[0], address[1],
                                  use_tls=use_tls, use_ssl=use_ssl,
                                  reattempt=reattempt)