diff --git a/check-routeros-update.rsc b/check-routeros-update.rsc
index 9486d6c..5c9b392 100644
--- a/check-routeros-update.rsc
+++ b/check-routeros-update.rsc
@@ -4,6 +4,7 @@
 # https://rsc.eworm.de/COPYING.md
 #
 # requires RouterOS, version=7.14
+# requires device-mode, fetch, scheduler
 #
 # check for RouterOS update, send notification and/or install
 # https://rsc.eworm.de/doc/check-routeros-update.md