diff --git a/pkg/checkout/checkout-grain.go b/pkg/checkout/checkout-grain.go
index 7713df8..cbd3172 100644
--- a/pkg/checkout/checkout-grain.go
+++ b/pkg/checkout/checkout-grain.go
@@ -102,7 +102,7 @@ type CheckoutGrain struct {
 	Deliveries             []*CheckoutDelivery `json:"deliveries,omitempty"`
 	PaymentInProgress      uint16              `json:"paymentInProgress"`
 	AmountInCentsRemaining int64               `json:"amountRemaining"`
-	AmountInCentsStarted   int64               `json:"amountPaid"`
+	AmountInCentsStarted   int64               `json:"amountActive"`
 	InventoryReserved      bool                `json:"inventoryReserved"`
 	Confirmation           *ConfirmationStatus `json:"confirmationViewed,omitempty"`
 	Payments               []*Payment          `json:"payments,omitempty"`