Problem with i18n-routes

While using i18n-routes with js-routes I recive error similar to this:
```ruby
ArgumentError at /

Message	invalid byte sequence in US-ASCII (in /Users/ernest.bursa/.rvm/gems/ruby-1.9.3-p194@phoenix/gems/js-routes-0.8.4/app/assets/javascripts/js-routes.js.erb)
File	/Users/ernest.bursa/.rvm/gems/ruby-1.9.3-p194@phoenix/gems/sprockets-2.2.2/lib/sprockets/safety_colons.rb
Line	20
```
Solution for this problem is to set correct encoding hasbang, code fixes below.