Prevent Ember from appending to the end of my RESTAdapter url?

I'm using an API that doesn't have any /post or anything at the end.

But Ember automatically adds things to the end of my url. Here is the code:

    App.Store = DS.Store.extend({
        revision: 12,
        adapter: DS.RESTAdapter.create({
            url: 'http://ift.tt/1CqHrtI'
        })
    });

    App.Offer = DS.Model.extend({
        name: DS.attr('string'),
        sku: DS.attr('string')
    });

    App.ApplicationRoute = Ember.Route.extend({
        model: function () {
            return App.Offer.find();
        }
    });

Ember adds /offers to the end of the url and of course I get a 404.