diff --git a/djangorestframework/mixins.py b/djangorestframework/mixins.py
index 6e66cfe45..f3964ad7f 100644
--- a/djangorestframework/mixins.py
+++ b/djangorestframework/mixins.py
@@ -388,6 +388,7 @@ class AuthMixin(object):
         user = self.user
         for permission_cls in self.permissions:
             permission = permission_cls(self)
+            permission.request = self.request
             permission.check_permission(user)
 
 
diff --git a/djangorestframework/permissions.py b/djangorestframework/permissions.py
index 59c5f481f..2540218fd 100644
--- a/djangorestframework/permissions.py
+++ b/djangorestframework/permissions.py
@@ -26,6 +26,10 @@ _403_FORBIDDEN_RESPONSE = ErrorResponse(
     {'detail': 'You do not have permission to access this resource. ' +
                'You may need to login or otherwise authenticate the request.'})
 
+_403_NOT_LOGGED_IN_RESPONSE = ErrorResponse(
+    status.HTTP_403_FORBIDDEN,
+    {'detail': 'You need to login to access this resource.'})
+
 _503_SERVICE_UNAVAILABLE = ErrorResponse(
     status.HTTP_503_SERVICE_UNAVAILABLE,
     {'detail': 'request was throttled'})
@@ -64,7 +68,7 @@ class IsAuthenticated(BasePermission):
 
     def check_permission(self, user):
         if not user.is_authenticated():
-            raise _403_FORBIDDEN_RESPONSE 
+            raise _403_NOT_LOGGED_IN_RESPONSE 
 
 
 class IsAdminUser(BasePermission):