diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt
index 11672cd3d..109732e57 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt
@@ -474,7 +474,7 @@ class MangaPresenter(
      * Returns the next unread chapter or null if everything is read.
      */
     fun getNextUnreadChapter(): ChapterItem? {
-        return chapters.sortedByDescending { it.source_order }.find { !it.read }
+        return chapters.sortedWith(getChapterSort()).findLast { !it.read }
     }
 
     /**