protocol buffer variables in riak configuration

In riak configuration docs:
http://docs.basho.com/riakcs/latest/cookbooks/configuration/Configuring-Riak/

the protocol buffers ip and port are listed as pb_ip and pb_port in the riak_kv section

When in fact in 1.4.2 they seem to be defined in the riak_api section like:
            {pb, [ {"127.0.0.1", 8087 } ]}
            ]},