diff --git a/cdist/conf/type/__acl/man.rst b/cdist/conf/type/__acl/man.rst
index bc71a0cc..092eb555 100644
--- a/cdist/conf/type/__acl/man.rst
+++ b/cdist/conf/type/__acl/man.rst
@@ -10,7 +10,11 @@ DESCRIPTION
 -----------
 ACL must be defined as 3-symbol combination, using ``r``, ``w``, ``x`` and ``-``.
 
-Fully supported on Linux, partial support for FreeBSD, OSX and Solaris.
+Fully supported on Linux (tested on Debian and CentOS).
+
+Partial support for FreeBSD, OSX and Solaris.
+
+OpenBSD and NetBSD support is not possible.
 
 See ``setfacl`` and ``acl`` manpages for more details.