diff --git a/config/debian/cron.hourly b/config/debian/cron.hourly
index a8ccfe70bba0eac1b18993c2a3593e090fa1691c..e9696d46968e3a31e74795506eb37e7606b7d9b9 100755
--- a/config/debian/cron.hourly
+++ b/config/debian/cron.hourly
@@ -59,6 +59,11 @@ $scriptsdir/generate-di
 # The key should run the following command:
 #        'xzcat | pg_restore -1 -a'
 
+# Update backports ACL
+sudo -u dak-unpriv cat /srv/backports-master.debian.org/etc/acl \
+  | dak acl set-fingerprints backports \
+  | mail -a "X-Debian: DAK" -e -s "backports: acl changes" team@backports.debian.org -- -F "Debian FTP Masters" -f ftpmaster@ftp-master.debian.org
+
 # do the buildd key updates
 BUILDDFUN=$(mktemp -p "${TMPDIR}" BUILDDFUN.XXXXXX)
 exec >> "${BUILDDFUN}" 2>&1