diff --git a/tabbycat/users/forms.py b/tabbycat/users/forms.py
index 36dd67b20ad..efab92c6e52 100644
--- a/tabbycat/users/forms.py
+++ b/tabbycat/users/forms.py
@@ -34,8 +34,7 @@ def get_users(self, email):
                 'username': email.split("@")[0],
             },
         )
-        if created:
-            user.membership_set.create(group=self.cleaned_data['role'])
+        user.membership_set.add(group=self.cleaned_data['role'])
         return [user]
 
     def save(self, *args, **kwargs):