           dfd.fail(options.error)
           dfd
 
-        BaseHullModel = Backbone.Model.extend
+        BaseHullModel = app.core.mvc.Model.extend
           sync: sync
 
         RawModel = BaseHullModel.extend

      require:
        paths:
          easyXDM: 'components/easyXDM/easyXDM'
          backbone: 'components/backbone/backbone'
          cookie: 'components/jquery.cookie/jquery.cookie'
        shim:
          easyXDM: { exports: 'easyXDM' }
          backbone: { exports: 'Backbone', deps: ['underscore', 'jquery'] }


      # Builds the URL used by easyXDM

              url = @collection?.url
            url

        Collection = app.core.mvc.Collection.extend
          model: Model
          sync: sync

