./README.md in sinatra-param-0.0.2 vs ./README.md in sinatra-param-0.1.0

@@ -8,9 +8,10 @@
 **`sinatra-param` allows you to declare, validate, and transform endpoint parameters as you would in frameworks like [DataMapper](http://datamapper.org/) or [ActiveModel](http://rubydoc.info/gems/activemodel/3.2.3/frames).**
 
 ## Example
 
 ``` ruby
+require 'sinatra/param'
 class App < Sinatra::Base
   helpers Sinatra::Param
 
   before do
     content_type :json
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