diff --git a/nodes/home/router.py b/nodes/home/router.py
index 997d42d..3a8b561 100644
--- a/nodes/home/router.py
+++ b/nodes/home/router.py
@@ -41,7 +41,7 @@ nodes['home.router'] = {
             # connected longer than 24 hours. We install this cronjob
             # to make sure we don't get disconnected randomly during the
             # day.
-            'restart_pppd': '23 2 * * *    root    systemctl restart pppoe && date -u +%s > /var/tmp/pppd-last-restart.status',
+            'restart_pppd': '23 2 * * *    root    systemctl restart pppoe && date -u +\%s > /var/tmp/pppd-last-restart.status',
         },
         'dhcpd': {
             'subnets': {