diff --git a/pisi/config.py b/pisi/config.py
index e4402480..444ef181 100644
--- a/pisi/config.py
+++ b/pisi/config.py
@@ -8,6 +8,8 @@
 #/etc/pisi/conf?) and this module will provide access to those
 #configuration parameters.
 
+import os
+
 from constants import const
 
 class Config(object):