diff --git a/bin/rails b/bin/rails
index e30c0122..47efe751 100755
--- a/bin/rails
+++ b/bin/rails
@@ -1,13 +1,13 @@
 #!/usr/bin/env ruby
-# This command will automatically be run when you run "rails" with Rails 4 gems installed from the root of your application.
+# This command will automatically be run when you run "rails" with Rails gems
+# installed from the root of your application.
 
-ENGINE_ROOT = File.expand_path('../..', __FILE__)
-ENGINE_PATH = File.expand_path('../../lib/tolk/engine', __FILE__)
+ENGINE_ROOT = File.expand_path('..', __dir__)
+ENGINE_PATH = File.expand_path('../lib/tolk/engine', __dir__)
+APP_PATH = File.expand_path('../test/dummy/config/application', __dir__)
 
-puts "ENGINE_ROOT: #{ENGINE_ROOT}"
-puts "ENGINE_PATH: #{ENGINE_PATH}"
 # Set up gems listed in the Gemfile.
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])
 
 require 'rails/all'