--- a/tests/test-acl	Mon Jun 28 23:16:11 2010 +0200
+++ b/tests/test-acl	Mon Jun 28 23:23:55 2010 +0200
@@ -44,7 +44,7 @@
 [acl]
 sources = push
 [extensions]
-f=$PWD/fakegroups.py
+f=`pwd`/fakegroups.py
 EOF
 }