Nested controller without associated route could not be found

I have updated to ember 1.9.0 and ember-cli 0.1.4

My controller PostsIndexController was placed into app/controllers/posts/index.js. This controller has not associated route. In route i can’t find controller (this.controllerFor(‘posts.index’)). If i create PagesIndexController and place it into app/controllers/posts-index.js then this.controllerFor(‘posts-index’) work perfectly. Is it possible found nested controller without associated route places nested folder and how?