diff --git a/README.md b/README.md
index b587fb8..ef3b3ed 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.org/invisibleroads/socketIO-client.svg?branch=master)](https://travis-ci.org/invisibleroads/socketIO-client)
+
 socketIO-client
 ===============
 Here is a [socket.io](http://socket.io) client library for Python.  You can use it to write test code for your socket.io server.
diff --git a/socketIO_client/__init__.py b/socketIO_client/__init__.py
index 3624484..f06b5cb 100644
--- a/socketIO_client/__init__.py
+++ b/socketIO_client/__init__.py
@@ -289,7 +289,10 @@ class SocketIO(object):
         self.wait(seconds, for_callbacks=True)
 
     def disconnect(self, path=''):
-        self._transport.disconnect(path)
+        try:
+            self._transport.disconnect(path)
+        except ReferenceError:
+            pass
         try:
             namespace = self._namespace_by_path[path]
             namespace.on_disconnect()