diff --git a/zephyr/models.py b/zephyr/models.py
index 2a9cb3f6de..ac570d7dc7 100644
--- a/zephyr/models.py
+++ b/zephyr/models.py
@@ -20,7 +20,7 @@ class Zephyr(models.Model):
     content = models.CharField(max_length=200)
     pub_date = models.DateTimeField('date published')
 
-def create_user_profile(sender, **kwargs):
+def create_user_profile(**kwargs):
     """When creating a new user, make a profile for him or her."""
     u = kwargs["instance"]
     if not UserProfile.objects.filter(user=u):