SonataDoctrineORMAdminBundle/Resources/config/security.xml

<?xml version="1.0" encoding="UTF-8" ?>

<container xmlns="http://symfony.com/schema/dic/services"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <parameters>
        <parameter key="sonata.admin.manipulator.acl.object.orm.class">Sonata\DoctrineORMAdminBundle\Util\ObjectAclManipulator</parameter>
    </parameters>

    <services>
        <service id="sonata.admin.manipulator.acl.object.orm" class="%sonata.admin.manipulator.acl.object.orm.class%" />
    </services>
</container>