diff --git a/telegram-chat.rsc b/telegram-chat.rsc
index 986df03..d8f917b 100644
--- a/telegram-chat.rsc
+++ b/telegram-chat.rsc
@@ -3,10 +3,12 @@
 # Copyright (c) 2023-2024 Christian Hesse <mail@eworm.de>
 # https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
 #
+# requires RouterOS, version=7.12
+#
 # use Telegram to chat with your Router and send commands
 # https://git.eworm.de/cgit/routeros-scripts/about/doc/telegram-chat.md
 
-:local 0 "telegram-chat";
+:local 0 [ :jobname ];
 :global GlobalFunctionsReady;
 :while ($GlobalFunctionsReady != true) do={ :delay 500ms; }