diff --git a/files/systemd/certbot-renew.service b/files/systemd/certbot-renew.service
index 0e5c1d6..399c520 100644
--- a/files/systemd/certbot-renew.service
+++ b/files/systemd/certbot-renew.service
@@ -2,4 +2,4 @@
 Description=Renew certbot certificates
 
 [Service]
-ExecStart=certbot_renew
+ExecStart=/usr/sbin/certbot_renew