diff --git a/library/cron b/library/cron
index b899d3419da..75a491c84fa 100644
--- a/library/cron
+++ b/library/cron
@@ -102,6 +102,7 @@ options:
   reboot:
     description:
       - If the job should be run at reboot, will ignore minute, hour, day, and month settings in favour of @reboot
+    version_added: "1.0"
     required: false
     default: False
     aliases: []