diff --git a/app/controllers/discourse_subscriptions/user/payments_controller.rb b/app/controllers/discourse_subscriptions/user/payments_controller.rb
index 3bc7841..640df41 100644
--- a/app/controllers/discourse_subscriptions/user/payments_controller.rb
+++ b/app/controllers/discourse_subscriptions/user/payments_controller.rb
@@ -49,6 +49,7 @@ module DiscourseSubscriptions
       def parse_invoice_lines(invoice_lines)
         invoice_product_id = invoice_lines[:price][:product] if invoice_lines[:price] && invoice_lines[:price][:product]
         invoice_product_id = invoice_lines[:plan][:product] if invoice_lines[:plan] && invoice_lines[:plan][:product]
+        invoice_product_id
       end
     end
   end