diff --git a/system/cron b/system/cron
index 7fff4e1740d..14781e44e20 100644
--- a/system/cron
+++ b/system/cron
@@ -38,7 +38,9 @@ description:
     crontab entries, update, or delete them.
   - 'The module includes one line with the description of the crontab entry C("#Ansible: <name>")
     corresponding to the "name" passed to the module, which is used by future ansible/module calls
-    to find/check the state.'
+    to find/check the state.  The "name" parameter is therefore quite important: it should be 
+    unique, and changing the "name" value will result in a new cron task being created (or a 
+    different one being removed).  In other words, don't change it.'
 version_added: "0.9"
 options:
   name: