diff --git a/packages/design-system/lib/components/Lightbox/Gallery/useThumbNail.ts b/packages/design-system/lib/components/Lightbox/Gallery/useThumbNail.ts
index a03fcbe22..b1001e2be 100644
--- a/packages/design-system/lib/components/Lightbox/Gallery/useThumbNail.ts
+++ b/packages/design-system/lib/components/Lightbox/Gallery/useThumbNail.ts
@@ -18,7 +18,7 @@ export function useThumbnail({ images, mainImageIdx }: useThumbnailProps) {
     if (mainImageIdx < THUMBNAIL_OFFSET) {
       return {
         images: images.slice(0, THUMBNAIL_WINDOW),
-        next: images[THUMBNAIL_WINDOW + 1],
+        next: images[THUMBNAIL_WINDOW],
       }
     }
     if (mainImageIdx >= images.length - THUMBNAIL_OFFSET) {