diff --git a/templates/os/sources/sources.list.erb b/templates/os/sources/sources.list.erb
index 5eb5d764dfb66965670aa284458e3742fc0f1a3f..2748bdda07ac3063cda54adfb1b9db51ab56796c 100644
--- a/templates/os/sources/sources.list.erb
+++ b/templates/os/sources/sources.list.erb
@@ -20,7 +20,7 @@ deb-src  http://debian.stanford.edu/ubuntu <%= lsbdistcodename %>-updates main m
 deb     http://debian.stanford.edu/debian <%= lsbdistcodename %> main non-free contrib
 deb-src http://debian.stanford.edu/debian <%= lsbdistcodename %> main non-free contrib
 <% end -%>
-<% if lsbdistcodename == 'squeeze' -%>
+<% if (lsbdistcodename == 'squeeze') or (lsbdistcodename == 'wheezy') -%>
 
 # The additional archives below only exist for released versions of Debian
 # that have not been retired.
@@ -32,6 +32,6 @@ deb-src http://debian.stanford.edu/debian-security <%= lsbdistcodename %>/update
 # The updates Debian archive and source tree.  This is a replacement for
 # the volatile archive and contains packages that change more frequently
 # than stable point releases but are still carefully vetted.
-deb     http://debian.stanford.edu/debian squeeze-updates main non-free contrib
-deb-src http://debian.stanford.edu/debian squeeze-updates main non-free contrib
+deb     http://debian.stanford.edu/debian <%= lsbdistcodename %>-updates main non-free contrib
+deb-src http://debian.stanford.edu/debian <%= lsbdistcodename %>-updates main non-free contrib
 <% end -%>