diff --git a/Synology-RT1900ac-install-guide.md b/Synology-RT1900ac-install-guide.md
index f930974..9363c53 100644
--- a/Synology-RT1900ac-install-guide.md
+++ b/Synology-RT1900ac-install-guide.md
@@ -27,7 +27,7 @@ ctrl+c
 :wq (and you are out of VI(M)
 
 now to create your cert
-$ ./acme.sh  --issue --post-hook "kill -USR1 `cat /run/httpd/httpd-sys.pid`" --dns dns_cf --certpath /usr/syno/etc/ssl/ssl.crt/server.crt --keypath /usr/syno/etc/ssl/ssl.key/server.key --fullchainpath /usr/syno/etc/ssl/ssl.intercrt/server-ca.crt --config-home /volume1/@appstore/acme.sh/ --dnssleep 15 -d YOURDOMAIN.TLD 
+$ ./acme.sh  --issue --post-hook "/usr/syno/sbin/synoservicecfg --restart httpd-sys" --dns dns_cf --certpath /usr/syno/etc/ssl/ssl.crt/server.crt --keypath /usr/syno/etc/ssl/ssl.key/server.key --fullchainpath /usr/syno/etc/ssl/ssl.intercrt/server-ca.crt --config-home /volume1/@appstore/acme.sh/ --dnssleep 15 -d YOURDOMAIN.TLD 
 
 simple right?