From 0e199a525f3991b55f44e581cb28b80b35130703 Mon Sep 17 00:00:00 2001
From: yoshnopa <40072150+yoshnopa@users.noreply.github.com>
Date: Tue, 16 May 2023 02:26:35 +0200
Subject: [PATCH] ChapterBug // Fix jump to wrong page if chapter number if
 (number - 1) % pagelength = 0 (#3730)

---
 ui/v2.5/src/hooks/Lightbox/Lightbox.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ui/v2.5/src/hooks/Lightbox/Lightbox.tsx b/ui/v2.5/src/hooks/Lightbox/Lightbox.tsx
index ca79805d7..bae92ab0c 100644
--- a/ui/v2.5/src/hooks/Lightbox/Lightbox.tsx
+++ b/ui/v2.5/src/hooks/Lightbox/Lightbox.tsx
@@ -466,7 +466,7 @@ export const LightboxComponent: React.FC<IProps> = ({
   function gotoPage(imageIndex: number) {
     const indexInPage = (imageIndex - 1) % pageSize;
     if (pageCallback) {
-      let jumppage = Math.floor(imageIndex / pageSize) + 1;
+      let jumppage = Math.floor((imageIndex - 1) / pageSize) + 1;
       if (page !== jumppage) {
         pageCallback({ page: jumppage });
         oldImages.current = images;