diff --git a/pisi/util.py b/pisi/util.py
index 566f893c..cd0e5770 100644
--- a/pisi/util.py
+++ b/pisi/util.py
@@ -23,6 +23,7 @@ import re
 import sys
 import sha
 import shutil
+import string
 import statvfs
 import operator