diff -r 7510cc3bbdbb -r 6a3f776292a5 web/views/calendar.py
--- a/web/views/calendar.py	Mon Jul 05 19:05:56 2010 +0200
+++ b/web/views/calendar.py	Mon Jul 05 19:06:17 2010 +0200
@@ -32,7 +32,7 @@
 
 class ICalendarableAdapter(EntityAdapter):
     __regid__ = 'ICalendarable'
-    __select__ = implements(ICalendarable) # XXX for bw compat, should be abstract
+    __select__ = implements(ICalendarable, warn=False) # XXX for bw compat, should be abstract
 
     @property
     @implements_adapter_compat('ICalendarable')