diff --git a/components/cart/delete-item-button.tsx b/components/cart/delete-item-button.tsx
index c0854727b..242ecae9b 100644
--- a/components/cart/delete-item-button.tsx
+++ b/components/cart/delete-item-button.tsx
@@ -39,7 +39,7 @@ export function DeleteItemButton({ item }: { item: CartItem }) {
   const { id: itemId, coreCharge } = item;
   const actionWithVariant = formAction.bind(null, [
     itemId,
-    ...(coreCharge?.lineId ? [coreCharge.lineId] : [])
+    ...(coreCharge?.id ? [coreCharge.id] : [])
   ]);
 
   return (
diff --git a/components/cart/edit-item-quantity-button.tsx b/components/cart/edit-item-quantity-button.tsx
index 007e33f0c..de0745c4b 100644
--- a/components/cart/edit-item-quantity-button.tsx
+++ b/components/cart/edit-item-quantity-button.tsx
@@ -48,9 +48,9 @@ export function EditItemQuantityButton({ item, type }: { item: CartItem; type: '
     }
   ];
 
-  if (item.coreCharge?.lineId) {
+  if (item.coreCharge) {
     payload.push({
-      lineId: item.coreCharge.lineId,
+      lineId: item.coreCharge.id,
       variantId: item.coreCharge.id,
       quantity
     });