openldap-fusiondirectory referrals URI issue

[openemail]

<location name="primary">
    <referral URI='ldap://openldap-fusiond-openemail:/dc=openemail,dc=io'
                    adminDn="cn=admin,dc=openemail,dc=io"
                    adminPassword="openemail" />
</location>

I had to change the URI from "ldap://openldap-fusiond-openemail:/dc=openemail,dc=io" to "ldap://openldap-fusiond-openemail/dc=openemail,dc=io" to get working. The colon(:) had to remove