diff --git a/requests/models.py b/requests/models.py
index 2e35c7ec..a2e4c2eb 100644
--- a/requests/models.py
+++ b/requests/models.py
@@ -11,6 +11,7 @@ import urllib2
 import socket
 import zlib
 import cgi
+import re
 
 from urllib2 import HTTPError
 from urlparse import urlparse, urlunparse, urljoin