diff --git a/lib/stripe.rb b/lib/stripe.rb
index 416bca12..d465a65c 100644
--- a/lib/stripe.rb
+++ b/lib/stripe.rb
@@ -401,6 +401,7 @@ module Stripe
   class Charge < APIResource
     include Stripe::APIOperations::List
     include Stripe::APIOperations::Create
+    include Stripe::APIOperations::Update
 
     def refund(params={})
       response, api_key = Stripe.request(:post, refund_url, @api_key, params)