diff --git a/dhcp-to-dns.rsc b/dhcp-to-dns.rsc
index 38e8c79..8dccf35 100644
--- a/dhcp-to-dns.rsc
+++ b/dhcp-to-dns.rsc
@@ -4,11 +4,12 @@
 # https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
 #
 # provides: lease-script, order=20
+# requires RouterOS, version=7.12
 #
 # check DHCP leases and add/remove/update DNS entries
 # https://git.eworm.de/cgit/routeros-scripts/about/doc/dhcp-to-dns.md
 
-:local 0 "dhcp-to-dns";
+:local 0 [ :jobname ];
 :global GlobalFunctionsReady;
 :while ($GlobalFunctionsReady != true) do={ :delay 500ms; }