diff --git a/restart_web.sh b/restart_web.sh
new file mode 100644
index 0000000..c9bdf0a
--- /dev/null
+++ b/restart_web.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# This script assembles the public and private keys into a single file and
+# restarts lightttpd on an edgerouter to use as https certificate for the web gui
+# automatically run by acme.sh after a certificate has been renewed
+
+cat /config/acme/certs/work/cert.pem /config/acme/certs/work/key.pem > /config/acme/certs/er_cert.pem
+
+sudo kill -SIGINT $(cat /var/run/lighttpd.pid)
+sudo /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf