diff --git a/lib/pages/setting/pages/bar_set.dart b/lib/pages/setting/pages/bar_set.dart
index eb6b92193..51b730df4 100644
--- a/lib/pages/setting/pages/bar_set.dart
+++ b/lib/pages/setting/pages/bar_set.dart
@@ -28,8 +28,8 @@ class _BarSetPageState extends State<BarSetPage> {
         .map((e) => Pair(first: e, second: cache?.contains(e.index) ?? true))
         .toList();
     if (cache != null && cache.isNotEmpty) {
+      final cacheIndex = {for (var (k, v) in cache.indexed) v: k};
       list.sort((a, b) {
-        final cacheIndex = {for (var (k, v) in cache.indexed) v: k};
         final indexA = cacheIndex[a.first.index] ?? cacheIndex.length;
         final indexB = cacheIndex[b.first.index] ?? cacheIndex.length;
         return indexA.compareTo(indexB);