diff --git a/types/shopify-buy/index.d.ts b/types/shopify-buy/index.d.ts
index 7140f85515..11f15d9dfd 100644
--- a/types/shopify-buy/index.d.ts
+++ b/types/shopify-buy/index.d.ts
@@ -310,10 +310,10 @@ declare namespace ShopifyBuy {
         lineItems: LineItem[];
 
         /**
-         * Get current subtotal price for all line items.
+         * Get current subtotal price for all line items, before shipping, taxes, and discounts.
          * Example: two items have been added to the cart that cost $1.25 then the subtotal will be 2.50
          */
-        subtotal: string;
+        subtotalPrice: string;
     }
 
     export interface LineItem extends GraphModel {
diff --git a/types/shopify-buy/shopify-buy-tests.ts b/types/shopify-buy/shopify-buy-tests.ts
index 0e65990121..2813dc4d5d 100644
--- a/types/shopify-buy/shopify-buy-tests.ts
+++ b/types/shopify-buy/shopify-buy-tests.ts
@@ -371,7 +371,7 @@ function renderCartItems() {
 /* Update Total Cart Pricing
 ============================================================ */
 function updateTotalCartPricing() {
-    $('.cart .pricing').text(formatAsMoney(cart.subtotal));
+    $('.cart .pricing').text(formatAsMoney(cart.subtotalPrice));
 }
 
 /* Format amount as currency