diff --git a/django/contrib/auth/models.py b/django/contrib/auth/models.py
index 5fec99a783c..406852a4164 100644
--- a/django/contrib/auth/models.py
+++ b/django/contrib/auth/models.py
@@ -14,7 +14,6 @@ from django.utils.translation import ugettext_lazy as _
 from django.utils import timezone
 
 from django.contrib import auth
-# UNUSABLE_PASSWORD is still imported here for backwards compatibility
 from django.contrib.auth.hashers import (
     check_password, make_password, is_password_usable)
 from django.contrib.auth.signals import user_logged_in