I am trying to get slapo-rwm module working in a cn=config setup

I have openldap with a local DB and ldap database backing onto a MS AD DB

I am trying to rewrite objectclass group to groupOfUniqueNames and attribute member to uniqueMember

this is what i use to set it up

dn: cn=module{0},cn=config
changetype: modify
add: olcModuleLoad
olcModuleLoad: {4}rwm

dn: olcOverlay=rwm,olcDatabase={1}ldap,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcRwmConfig
olcOverlay: rwm
olcRwmRewrite: rwm-rewriteEngine "on"
olcRwmMap: {1}objectclass group groupOfUniqueNames
olcRwmMap: {2}attribute member uniqueMember
olcRwmNormalizeMapped: FALSE

but when i try a ldapsearch it doesn't work , the object class and attribute are not re written