diff --git a/warc/warc.py b/warc/warc.py
index 0c762a6..63610d2 100644
--- a/warc/warc.py
+++ b/warc/warc.py
@@ -7,7 +7,7 @@
 :copyright: (c) 2012 Internet Archive
 """
 
-import __builtin__
+import builtins
 import datetime
 import uuid
 import logging