OpenLDAP and group membership issues

I have set up an ldap server where the hierarchy is:

dc=mydomain,dc=org
----ou=people
     ----cn=MyUserA                  ----cn=MyUserB
----ou=groups
    ----cn=MyGroupA
    ----cn=MyGroupB

Each user has an attribute uid (where values are myua and myub) and MyGroupA has the member attribute with the values

uid=myua,ou=people,dc=mydomain,dc=org

uid=myub,ou=people,dc=mydomain,dc=org

The issue I am having is when I see the group list in OpenFire I see:

uid=myua,ou=people,dc=mydomain,dc=org@mydomain.org

any ideas as to what could be going wrong?

BTW searchGroupFilter is set to:

(objectclass=groupOfNames)