diff --git a/listsim/manage.py b/listsim/manage.py
index 133490f63251e5b38abe710a1a72a2ed1387542f..a10160e0c131d5018ee3a0f6201fbe526812608a 100644
--- a/listsim/manage.py
+++ b/listsim/manage.py
@@ -5,7 +5,7 @@ import sys
 from flask.ext.script import Manager, Command
 from listsim import app, create_app
 from listsim.model import *
-from listsim.mailer import Mailer
+from listsim.mail_worker import SchedulerThread
 
 
 manager = Manager(create_app)
@@ -28,7 +28,7 @@ def showconfig():
 @manager.command
 def worker(n_workers=5):
     """Run the background delivery worker."""
-    sched = Mailer.SchedulerThread(n_workers)
+    sched = SchedulerThread(n_workers)
     sched.start()
     sched.join()