diff --git a/django/contrib/formtools/preview.py b/django/contrib/formtools/preview.py
index 32c1d99e0e..daecba7928 100644
--- a/django/contrib/formtools/preview.py
+++ b/django/contrib/formtools/preview.py
@@ -48,6 +48,7 @@ from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.http import Http404
 from django.shortcuts import render_to_response
+from django.template.context import RequestContext
 import cPickle as pickle
 import md5