diff --git a/README.rst b/README.rst
index 18a32a7..d349af4 100644
--- a/README.rst
+++ b/README.rst
@@ -96,6 +96,9 @@ Optional settings::
     # list of default group names to assign to new users
     GOOGLEAUTH_GROUPS = []
 
+    # create new user if it doesn't exist, default True
+    GOOGLEAUTH_USER_CREATE = True
+
 URL routes
 ~~~~~~~~~~
 
@@ -107,4 +110,4 @@ Add URL config::
         ...
     )
 
-googleauth doesn't need to be mounted under */auth/*, it can go anywhere. Place it where you see fit for your specific app.
\ No newline at end of file
+googleauth doesn't need to be mounted under */auth/*, it can go anywhere. Place it where you see fit for your specific app.
diff --git a/googleauth/backends.py b/googleauth/backends.py
index 919868b..f27b616 100644
--- a/googleauth/backends.py
+++ b/googleauth/backends.py
@@ -5,6 +5,7 @@
 IS_STAFF = getattr(settings, 'GOOGLEAUTH_IS_STAFF', False)
 GROUPS = getattr(settings, 'GOOGLEAUTH_GROUPS', tuple())
 APPS_DOMAIN = getattr(settings, 'GOOGLEAUTH_APPS_DOMAIN', None)
+USER_CREATE = getattr(settings, 'GOOGLEAUTH_USER_CREATE', True)
 
 
 class GoogleAuthBackend(object):
@@ -29,6 +30,9 @@ def authenticate(self, identifier=None, attributes=None):
 
         except User.DoesNotExist:
 
+            if not USER_CREATE:
+                return None
+
             user = User.objects.create(username=username, email=email)
             user.first_name = attributes.get('first_name') or ''
             user.last_name = attributes.get('last_name') or ''
diff --git a/googleauth/urls.py b/googleauth/urls.py
index 891da5e..3203157 100644
--- a/googleauth/urls.py
+++ b/googleauth/urls.py
@@ -1,4 +1,8 @@
-from django.conf.urls import *
+try:
+    from django.conf.urls import url, patterns
+except:
+    # django 1.3
+    from django.conf.urls.defaults import url, patterns
 
 urlpatterns = patterns('',
     url(r'^login/$', 'googleauth.views.login', name='googleauth_login'),