diff --git a/distribution/openrct2.d.ts b/distribution/openrct2.d.ts
index e2b1cf64d4..46bc9ce92c 100644
--- a/distribution/openrct2.d.ts
+++ b/distribution/openrct2.d.ts
@@ -1114,7 +1114,7 @@ declare global {
          * @see `ShopItem` in {@link https://github.com/OpenRCT2/OpenRCT2/blob/develop/src/openrct2/ride/ShopItem.h}
          */
         item: number;
-        numweeks: number;
+        duration: number;
     }
 
     interface ParkSetDateArgs extends GameActionArgs {