diff --git a/Rakefile b/Rakefile
index 2995527..33ae0a8 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1 +1,9 @@
 require "bundler/gem_tasks"
+require "rake/clean"
+require "yard"
+
+CLEAN.include "doc"
+
+YARD::Rake::YardocTask.new do |yard|
+  yard.files = ['lib/**/*.rb']
+end