diff -r 24c6db8d13f1 -r 0a7a5155d352 src/pyams_portal/interfaces/__init__.py
--- a/src/pyams_portal/interfaces/__init__.py	Wed Jun 28 10:16:27 2017 +0200
+++ b/src/pyams_portal/interfaces/__init__.py	Wed Jun 28 11:45:31 2017 +0200
@@ -152,6 +152,8 @@
 
     label = Attribute("Renderer name")
 
+    target_interface = Attribute("Target interface provided by this renderer")
+
 
 class IPortalPortletsConfiguration(IContained):
     """Portal template portlet configuration interface"""