--- a/src/pyams_utils/interfaces/site.py	Tue Mar 20 17:39:48 2018 +0100
+++ b/src/pyams_utils/interfaces/site.py	Thu Mar 22 14:42:18 2018 +0100
@@ -27,6 +27,10 @@
     """Marker interface for site root"""
 
 
+class ISiteRootFactory(Interface):
+    """Site root utility factory interface"""
+
+
 class INewLocalSiteCreatedEvent(IObjectEvent):
     """Event interface when a new site root has been created"""