--- a/ztfy/utils/site.py	Mon May 23 00:40:13 2011 +0200
+++ b/ztfy/utils/site.py	Tue Oct 18 08:36:11 2011 +0200
@@ -21,7 +21,7 @@
 from zope.intid.interfaces import IIntIds
 
 # import local interfaces
-from interfaces import INewSiteManagerEvent
+from ztfy.utils.interfaces import INewSiteManagerEvent
 
 # import Zope3 packages
 from zope.component import getUtility