EmberJS CLI map a reserved word

How can i do something like this with ember-cli? The .map('App.Post'doesn't want to work with the cli.

App.Post = DS.Model.extend({
  body: DS.attr('string')
});

App.Adapter.map('App.Post', {
  body: {key: 'data'}
});

The problem is this: I work with a JSON Api that uses the reserved word data in one of its models.