# Raise an error when there is a route with uppercased letters in router.js (no-capital-letters-in-routes) When you accidentally uppercase any of your routes or create uppercased route using ember-cli the application will crash without any clear information what's wrong. This rule makes it more obvious, so you don't have to think about it any more. ## Rule Details Examples of **incorrect** code for this rule: ```js this.route('Home'); this.route('SignUp'); ``` Examples of **correct** code for this rule: ```js this.route('home'); this.route('sign-up'); ```