diff --git a/docs/docsite/rst/user_guide/playbooks_conditionals.rst b/docs/docsite/rst/user_guide/playbooks_conditionals.rst
index 4645fdbb55..76526941d0 100644
--- a/docs/docsite/rst/user_guide/playbooks_conditionals.rst
+++ b/docs/docsite/rst/user_guide/playbooks_conditionals.rst
@@ -395,8 +395,9 @@ Possible values (sample, not complete list)::
     Slackware
     Solaris
     Suse
+    Windows
 
-.. See `OS_FAMILY_MAP`
+.. Ansible checks `OS_FAMILY_MAP`; if there's no match, it returns the value of `platform.system()`.
 
 .. seealso::