Rakefile in tb_media-1.3.0 vs Rakefile in tb_media-1.3.1

@@ -18,10 +18,10 @@
   rdoc.options << '--line-numbers'
   rdoc.rdoc_files.include('README.rdoc')
   rdoc.rdoc_files.include('lib/**/*.rb')
 end
 
-APP_RAKEFILE = File.expand_path('../spec/dummy/Rakefile', __FILE__)
+APP_RAKEFILE = File.expand_path('spec/dummy/Rakefile', __dir__)
 load 'rails/tasks/engine.rake'
 
 Bundler::GemHelper.install_tasks
 
 require 'rake'