diff --git a/bin/daily b/bin/daily
index 3119ac162..d596978bf 100644
--- a/bin/daily
+++ b/bin/daily
@@ -1,9 +1,12 @@
 #!/bin/bash
 
-# Nightly datatracker jobs
+# Nightly datatracker jobs.
+# 
+# This script is expected to be triggered by cron from
+# $DTDIR/etc/cron.d/datatracker which should be symlinked from
+# /etc/cron.d/
 
 DTDIR=/a/www/ietf-datatracker/web
-
 cd $DTDIR/
 
 # Set up the virtual environment
diff --git a/etc/cron.d/datatracker b/etc/cron.d/datatracker
index d24117a31..174ce297e 100644
--- a/etc/cron.d/datatracker
+++ b/etc/cron.d/datatracker
@@ -1,8 +1,10 @@
 # -*- indent-with-tabs: 0 -*-
 #
-# Update the local copies of the IETF rfc and draft repositories
-# 
-# Every hour
+# This file controls the datatracker-related cronjobs.  It's intended to be
+# symlinked into /etc/init.d/ .  It is a crontab in order to be able to add
+# actions which don't fit into the daily or hourly pattern.  It, and daily
+# and hourly scripts it triggers, are part of the datatracker repository in
+# order to handle cronjob changes that go together with code changes well.
 
 PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
diff --git a/ietf/settings.py b/ietf/settings.py
index ed9c4c414..aa50ce644 100644
--- a/ietf/settings.py
+++ b/ietf/settings.py
@@ -45,9 +45,6 @@ ADMINS = (
 
 ALLOWED_HOSTS = [".ietf.org", ".ietf.org.", "209.208.19.216", "4.31.198.44", ]
 
-# This is used to construct the path to manage.py, in order to run management
-# commands, for instance in etc/cron.d/datatracker
-DEPLOYMENT_DIR = '/a/www/ietf-datatracker'
 
 # Server name of the tools server
 TOOLS_SERVER = 'tools.' + IETF_DOMAIN