diff --git a/app/controllers/public/joins_controller.rb b/app/controllers/public/joins_controller.rb
index 2ab547a..f0d23b6 100644
--- a/app/controllers/public/joins_controller.rb
+++ b/app/controllers/public/joins_controller.rb
@@ -226,7 +226,7 @@ class Public::JoinsController < ApplicationController
     
     @api = PayPal::SDK::Merchant.new
       if @api.ipn_valid?(request.raw_post)  # return true or false
-        @sheet = Renew.find_by_token(params[:custom].to_s)
+        @sheet = Sheet.find_by_token(params[:custom].to_s)
         if params[:payment_status] == "Completed"