diff --git a/doc/check-certificates.md b/doc/check-certificates.md
index 51ecd14..6e4a851 100644
--- a/doc/check-certificates.md
+++ b/doc/check-certificates.md
@@ -42,6 +42,10 @@ Just run the script:
 
     / system scheduler add interval=1d name=check-certificates on-event="/ system script run check-certificates;" start-time=startup;
 
+Alternatively running on startup may be desired:
+
+    / system scheduler add name=check-certificates-startup on-event="/ system script { run global-wait; run check-certificates; }" start-time=startup;
+
 See also
 --------