QFX .vs EX DHCP Command syntax

This code does not work in our EX-4600, is there a way to make it work.?

        ##
        ## Warning: configuration block ignored: unsupported platform (ex4600-40f)
        ##
        dhcp {
            maximum-lease-time 1000;
            default-lease-time 1000;
            domain-name mass.com;
            name-server {
                10.10.10.10;
                10.2.0.1;
                10.2.0.3;
            }
            domain-search {
                mass.com;
            }
            router {
                10.10.110.254;
            }
            server-identifier 10.10.9.254;
        }
    }