diff --git a/lib/ui/viewer/file/detail_page.dart b/lib/ui/viewer/file/detail_page.dart
index e4d65ddf0..3ae287727 100644
--- a/lib/ui/viewer/file/detail_page.dart
+++ b/lib/ui/viewer/file/detail_page.dart
@@ -51,7 +51,7 @@ class DetailPageConfiguration {
       asyncLoader ?? this.asyncLoader,
       selectedIndex ?? this.selectedIndex,
       tagPrefix ?? this.tagPrefix,
-      sortOrderAsc: sortOrderAsc!,
+      sortOrderAsc: sortOrderAsc ?? this.sortOrderAsc,
     );
   }
 }