diff --git a/lib/oauth2.js b/lib/oauth2.js
index 94ed662c..6937aa86 100644
--- a/lib/oauth2.js
+++ b/lib/oauth2.js
@@ -148,7 +148,7 @@ exports.OAuth2.prototype._executeRequest= function( http_library, options, post_
     callback(e);
   });
 
-  if( (options.method == 'POST' || options.method == 'PUT') && post_body ) {
+  if( (options.method == 'POST' || options.method == 'PUT' || options.method == 'PATCH') && post_body ) {
      request.write(post_body);
   }
   request.end();