case os:getenv("TRAVIS") of
  "true" ->
    JobId   = os:getenv("TRAVIS_JOB_ID"),
    CONFIG1 = lists:keystore(coveralls_service_job_id, 1, CONFIG, {coveralls_service_job_id, JobId}),
    lists:keystore(plugins, 1, CONFIG1, {plugins, [coveralls, {rebar3_hex, "4.1.0"}]});
  _ ->
    CONFIG
end.