diff --git a/docs/rolereference.rst b/docs/rolereference.rst
index 3f4ab8d18680e8544582d71c50a53570cddecf08..4cb0879b30522cb0fa11258ac7ef310c26f4c509 100644
--- a/docs/rolereference.rst
+++ b/docs/rolereference.rst
@@ -348,6 +348,11 @@ The role implements the following:
 * Configures OpenLDAP server (base DN - domain, organisation, TLS, SSF, log levels).
 * Sets-up separate log file for OpenLDAP server at ``/var/log/slapd.log`` (with
   log rotation included).
+* Enables the ``memberof`` overlay on top of default database. The overlay is
+  configured to keep track of membership changes for object class
+  ``groupOfUniqueNames`` via attribute ``uniqueMember``. Enforcement of
+  referential integrity is turned on as well (modifications of ``memberof``
+  attribute will update corresponding group as well.
 * Configures permissions.
 * Creates LDAP entries.