diff --git a/rest_framework/pagination.py b/rest_framework/pagination.py
index 0f8e6ddfb..0b6155942 100644
--- a/rest_framework/pagination.py
+++ b/rest_framework/pagination.py
@@ -5,6 +5,7 @@ be used for paginated responses.
 """
 from __future__ import unicode_literals
 
+import warnings
 from base64 import b64decode, b64encode
 from collections import OrderedDict, namedtuple