diff --git a/rpm5utils/synthesis.py b/rpm5utils/synthesis.py
index 4fd7865..f6bb8a5 100644
--- a/rpm5utils/synthesis.py
+++ b/rpm5utils/synthesis.py
@@ -4,6 +4,7 @@ from urllib2 import urlopen, HTTPError, URLError
 import subprocess
 import platform
 import sys
+import os
 
 ARCH = platform.machine()