diff --git a/AUTHORS b/AUTHORS
index 73fe3078c9..10b41c2e7c 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -81,6 +81,7 @@ answer newbie questions, and generally made Django that much better:
     phaedo <http://phaedo.cx/>
     Luke Plant <http://lukeplant.me.uk/>
     plisk
+    Brian Ray <http://brianray.chipy.org/>
     Oliver Rutherfurd <http://rutherfurd.net/>
     David Schein
     sopel
diff --git a/django/contrib/auth/handlers/modpython.py b/django/contrib/auth/handlers/modpython.py
index a29051b4a3..d538c9ccc8 100644
--- a/django/contrib/auth/handlers/modpython.py
+++ b/django/contrib/auth/handlers/modpython.py
@@ -13,7 +13,7 @@ def authenhandler(req, **kwargs):
     from django.models.auth import users
 
     # check for PythonOptions
-    _str_to_bool = lambda s: s.lower() in '1', 'true', 'on', 'yes'
+    _str_to_bool = lambda s: s.lower() in ('1', 'true', 'on', 'yes')
 
     options = req.get_options()
     permission_name = options.get('DjangoPermissionName', None)