diff --git a/AUTHORS b/AUTHORS
index fedbd74684..fde35507a0 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -142,6 +142,7 @@ answer newbie questions, and generally made Django that much better:
     Joseph Kocherhans
     konrad@gwu.edu
     lakin.wecker@gmail.com
+    Nick Lane <nick.lane.au@gmail.com>
     Stuart Langridge <http://www.kryogenix.org/>
     Nicola Larosa <nico@teknico.net>
     Eugene Lazutkin <http://lazutkin.com/blog/>
diff --git a/django/bin/daily_cleanup.py b/django/bin/daily_cleanup.py
index 3b83583d73..c87be1e4c3 100644
--- a/django/bin/daily_cleanup.py
+++ b/django/bin/daily_cleanup.py
@@ -7,13 +7,13 @@ Can be run as a cronjob to clean out old data from the database (only expired
 sessions at the moment).
 """
 
-from django.db import backend, connection, transaction
+import datetime
+from django.db import transaction
+from django.contrib.sessions.models import Session
 
 def clean_up():
-    # Clean up old database records
-    cursor = connection.cursor()
-    cursor.execute("DELETE FROM %s WHERE %s < NOW()" % \
-        (backend.quote_name('django_session'), backend.quote_name('expire_date')))
+    """Clean up expired sessions."""
+    Session.objects.filter(expire_date__lt=datetime.datetime.now()).delete()
     transaction.commit_unless_managed()
 
 if __name__ == "__main__":