diff --git a/roles/ldap_server/tasks/main.yml b/roles/ldap_server/tasks/main.yml
index 13505c619f7c8379b099c7ecc2c9c453c965375b..fb9bc2b94be7da8badcfe7bb25bec06f8032ff6e 100644
--- a/roles/ldap_server/tasks/main.yml
+++ b/roles/ldap_server/tasks/main.yml
@@ -54,6 +54,9 @@
       - olcMemberOf
       - olcOverlayConfig
     olcOverlay: memberof
+    olcMemberOfRefInt: "TRUE"
+    olcMemberOfGroupOC: groupOfUniqueNames
+    olcMemberOfMemberAD: uniqueMember
 
 - name: Apply database permissions
   ldap_permissions: