diff --git a/lib/simple_oauth.rb b/lib/simple_oauth.rb
index 54224d8..e4b2a7e 100644
--- a/lib/simple_oauth.rb
+++ b/lib/simple_oauth.rb
@@ -2,5 +2,5 @@ require 'base64'
 require 'cgi'
 require 'openssl'
 require 'uri'
-require File.expand_path('../simple_oauth/core_ext/object', __FILE__)
-require File.expand_path('../simple_oauth/header', __FILE__)
+require 'simple_oauth/core_ext/object'
+require 'simple_oauth/header'