diff --git a/assets/wizards/engagement/components/types.ts b/assets/wizards/engagement/components/types.ts
index f21b01cbe7..6b908dab36 100644
--- a/assets/wizards/engagement/components/types.ts
+++ b/assets/wizards/engagement/components/types.ts
@@ -42,6 +42,9 @@ declare global {
 			preview_post: string;
 			preview_archive: string;
 		};
+		newspack_reader_revenue: {
+			can_use_name_your_price: boolean;
+		};
 	}
 }
 
diff --git a/assets/wizards/readerRevenue/views/donation/index.tsx b/assets/wizards/readerRevenue/views/donation/index.tsx
index 24173bcd25..c0b64fee31 100644
--- a/assets/wizards/readerRevenue/views/donation/index.tsx
+++ b/assets/wizards/readerRevenue/views/donation/index.tsx
@@ -1,5 +1,3 @@
-/* globals newspack_reader_revenue */
-
 /**
  * WordPress dependencies.
  */
@@ -106,7 +104,7 @@ export const DonationAmounts = () => {
 	const minimumDonationFloat = parseFloat( minimumDonation );
 
 	// Whether we can use the Name Your Price extension. If not, layout is forced to Tiered.
-	const canUseNameYourPrice = newspack_reader_revenue?.can_use_name_your_price;
+	const canUseNameYourPrice = window.newspack_reader_revenue?.can_use_name_your_price;
 
 	return (
 		<>