diff --git a/lib/pages/reader/images.dart b/lib/pages/reader/images.dart
index 69690c0..5bb1212 100644
--- a/lib/pages/reader/images.dart
+++ b/lib/pages/reader/images.dart
@@ -111,9 +111,7 @@ class _GalleryModeState extends State<_GalleryMode>
 
   late _ReaderState reader;
 
-  int get totalPages => ((reader.images!.length + reader.imagesPerPage - 1) /
-          reader.imagesPerPage)
-      .ceil();
+  int get totalPages => (reader.images!.length / reader.imagesPerPage).ceil();
 
   @override
   void initState() {
diff --git a/lib/pages/reader/reader.dart b/lib/pages/reader/reader.dart
index c897f70..e38407b 100644
--- a/lib/pages/reader/reader.dart
+++ b/lib/pages/reader/reader.dart
@@ -98,8 +98,7 @@ class _ReaderState extends State<Reader> with _ReaderLocation, _ReaderWindow {
   }
 
   @override
-  int get maxPage =>
-      ((images?.length ?? 1) + imagesPerPage - 1) ~/ imagesPerPage;
+  int get maxPage => ((images?.length ?? 1) / imagesPerPage).ceil();
 
   ComicType get type => widget.type;