branch coverage

1 files changed, 3 insertions, 3 deletions

diff --git a/pyramid/config.py b/pyramid/config.py
index 1f4b85de0..906c5f935 100644
--- a/pyramid/config.py
+++ b/pyramid/config.py
@@ -395,13 +395,13 @@ class Configurator(object):
 
     @action_method
     def _set_security_policies(self, authentication, authorization=None):
-        if authorization is None:
-            authorization = ACLAuthorizationPolicy() # default
-        if authorization and not authentication:
+        if (authorization is not None) and (not authentication):
             raise ConfigurationError(
                 'If the "authorization" is passed a value, '
                 'the "authentication" argument must also be '
                 'passed a value; authorization requires authentication.')
+        if authorization is None:
+            authorization = ACLAuthorizationPolicy() # default
         self._set_authentication_policy(authentication)
         self._set_authorization_policy(authorization)