diff -r 91d11fda4aa0 -r 7f68077d2c3b schema.py
--- a/schema.py	Mon Dec 07 07:10:40 2009 -0800
+++ b/schema.py	Mon Dec 07 08:52:38 2009 -0800
@@ -412,8 +412,8 @@
 
     def may_have_permission(self, action, req, eschema=None, role=None):
         if eschema is not None:
-            for tschema in rschema.targets(eschema, role):
-                rdef = rschema.role_rdef(eschema, tschema, role)
+            for tschema in self.targets(eschema, role):
+                rdef = self.role_rdef(eschema, tschema, role)
                 if rdef.may_have_permission(action, req):
                     return True
         else: