diff --git a/framework/shopify/cart/use-add-item.tsx b/framework/shopify/cart/use-add-item.tsx
index 6dc3b8d6a..11771f1b3 100644
--- a/framework/shopify/cart/use-add-item.tsx
+++ b/framework/shopify/cart/use-add-item.tsx
@@ -14,7 +14,9 @@ export const handler: MutationHandler<Cart, {}, AddCartItemBody> = {
   fetchOptions: {
     query: checkoutLineItemAddMutation,
   },
-  async fetcher({ input: { item }, options, fetch }) {
+  async fetcher({ input, options, fetch }) {
+    const item = input?.item ?? input
+
     if (
       item.quantity &&
       (!Number.isInteger(item.quantity) || item.quantity! < 1)