diff --git a/config/cron/crontab b/config/cron/crontab
index b727531fc..7088e0b75 100644
--- a/config/cron/crontab
+++ b/config/cron/crontab
@@ -80,5 +80,8 @@ HOME=/
 # Cleanup the mail spool directory
 %weekly * * /usr/sbin/dma-cleanup-spool
 
+# Cleanup the collectd RRD (graphs)
+%weekly * * /bin/find /var/log/rrd -mtime +365 -type f -name '*.rrd' -delete -o -type d -empty -delete
+
 # Update DNS trust anchor
 %daily,random * * @runas(nobody) /usr/sbin/unbound-anchor -a /var/lib/unbound/root.key -c /etc/unbound/icannbundle.pem