diff --git a/tailbone/views/batch/core.py b/tailbone/views/batch/core.py
index 2d066ae8..56f6cdda 100644
--- a/tailbone/views/batch/core.py
+++ b/tailbone/views/batch/core.py
@@ -31,6 +31,7 @@ import datetime
 import logging
 from cStringIO import StringIO
 
+import six
 import sqlalchemy as sa
 from sqlalchemy import orm