--- a/web/views/primary.py	Wed Feb 08 14:32:35 2012 +0100
+++ b/web/views/primary.py	Wed Feb 08 14:30:51 2012 +0100
@@ -419,7 +419,7 @@
     __regid__ = 'attribute'
     __select__ = EntityView.__select__ & match_kwargs('rtype')
 
-    def entity_call(self, entity, rtype, role, **kwargs):
+    def entity_call(self, entity, rtype, role='subject', **kwargs):
         if self._cw.vreg.schema.rschema(rtype).final:
             self.w(entity.printable_value(rtype))
         else: