diff --git a/etc/init/smtp.conf b/etc/init/smtp.conf
index 4118ba2..4d801f6 100644
--- a/etc/init/smtp.conf
+++ b/etc/init/smtp.conf
@@ -4,7 +4,7 @@ version		1.0
 emits		none special
 
 start on (runlevel [2345] and (started ifup))
-stop on runlevel [S016]
+stop on runlevel [016]
 
 console none