diff --git a/types/amazon-product-api/index.d.ts b/types/amazon-product-api/index.d.ts
index 34bafd04f4..f266001632 100644
--- a/types/amazon-product-api/index.d.ts
+++ b/types/amazon-product-api/index.d.ts
@@ -33,6 +33,8 @@ interface IItemLookupOptions {
     searchIndex?: string;
     truncateReviewsAt?: number;
     variationPage?: string;
+    domain?: string;
+    request?: Function;
 }
 
 interface IBrowseNodeLookupOptions {