Rakefile in accept_headers-0.0.8 vs Rakefile in accept_headers-0.0.9

@@ -3,8 +3,8 @@
 
 task default: :test
 
 Rake::TestTask.new do |t|
   t.libs << "spec"
-  t.test_files = FileList['spec/*_spec.rb']
+  t.test_files = FileList['spec/**/*_spec.rb']
   t.verbose = true
 end