diff --git a/google/refine/refine.py b/google/refine/refine.py
index a0111aa..06212a1 100644
--- a/google/refine/refine.py
+++ b/google/refine/refine.py
@@ -24,6 +24,7 @@ import gzip
 import os
 import re
 import StringIO
+import time
 import urllib
 import urllib2_file
 import urllib2