diff --git a/lib/tasks/yardoc.rake b/lib/tasks/yardoc.rake
new file mode 100644
index 000000000..c98f3bd4f
--- /dev/null
+++ b/lib/tasks/yardoc.rake
@@ -0,0 +1,11 @@
+begin
+  require 'yard'
+
+  YARD::Rake::YardocTask.new do |t|
+    t.files = ['lib/**/*.rb', 'app/**/*.rb', 'vendor/plugins/**/*.rb']
+  end
+
+rescue LoadError
+  # yard not installed (gem install yard)
+  # http://yardoc.org
+end