diff --git a/Rakefile b/Rakefile
index c52127f..5cda719 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,7 +1,8 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
 
+task default: :test
 Rake::TestTask.new do |t|
   t.libs << "test"
-  t.pattern = "test/*_test.rb"
+  t.pattern = "test/**/*_test.rb"
 end