diff --git a/localauth/models.py b/localauth/models.py
index 8d4daa6..28fe5a3 100644
--- a/localauth/models.py
+++ b/localauth/models.py
@@ -12,8 +12,8 @@ from .helpers import profile_to_coords, upload_path
 class UserManager(BaseUserManager):
     use_in_migrations = True
 
-    def _create_user(self, email, display_name, password, **extra_fields):
-        values = [email, display_name]
+    def _create_user(self, email, password, **extra_fields):
+        values = [email]
         field_value_map = dict(zip(self.model.REQUIRED_FIELDS, values))
         for field_name, value in field_value_map.items():
             if not value:
@@ -29,12 +29,12 @@ class UserManager(BaseUserManager):
         user.save(using=self._db)
         return user
 
-    def create_user(self, email, display_name, password=None, **extra_fields):
-        return self._create_user(email, display_name, password, **extra_fields)
+    def create_user(self, email, password=None, **extra_fields):
+        return self._create_user(email, password, **extra_fields)
 
-    def create_superuser(self, email, display_name, password=None, **extra_fields):
+    def create_superuser(self, email, password=None, **extra_fields):
         extra_fields.setdefault('is_superuser', True)
-        return self._create_user(email, display_name, password, **extra_fields)
+        return self._create_user(email, password, **extra_fields)
 
 class User(AbstractBaseUser):
     email = models.EmailField(unique=True)