diff --git a/lib/use-checkout-pricing.js b/lib/use-checkout-pricing.js
index 63cac27..64a1569 100644
--- a/lib/use-checkout-pricing.js
+++ b/lib/use-checkout-pricing.js
@@ -91,12 +91,12 @@ export default function useCheckoutPricing (initialInputs, handleError = throwEr
 
     function addSubscriptions(subscriptions, checkoutPricing) {
       const { subscriptionPricings } = subscriptions.reduce(
-        ({ checkoutPricing, subscriptionPricings }, { plan, tax, addons = [], quantity }) => {
+        ({ checkoutPricing, subscriptionPricings }, { id, plan, tax, addons = [], quantity }) => {
           let subscriptionPricing;
           if (restInputs.currency) {
-            subscriptionPricing = recurly.Pricing.Subscription().currency(restInputs.currency).plan(plan, { quantity });
+            subscriptionPricing = recurly.Pricing.Subscription({ id }).currency(restInputs.currency).plan(plan, { quantity });
           } else {
-            subscriptionPricing = recurly.Pricing.Subscription().plan(plan, { quantity });
+            subscriptionPricing = recurly.Pricing.Subscription({ id }).plan(plan, { quantity });
           }
 
           if (addons.length) {