diff --git a/types/index.d.ts b/types/index.d.ts
index e56f86e..260d203 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -2311,6 +2311,7 @@ declare namespace Shopify {
   }
 
   interface IOrderLineItem {
+    current_quantity?: number;
     discount_allocations: ILineItemDiscountAllocation[];
     fulfillable_quantity: number;
     fulfillment_service: string;