diff --git a/flutter/lib/mobile/widgets/custom_scale_widget.dart b/flutter/lib/mobile/widgets/custom_scale_widget.dart
index b59622263..50d264467 100644
--- a/flutter/lib/mobile/widgets/custom_scale_widget.dart
+++ b/flutter/lib/mobile/widgets/custom_scale_widget.dart
@@ -6,7 +6,7 @@ import 'package:flutter_hbb/common/widgets/custom_scale_mixin.dart';
 class MobileCustomScaleControls extends StatefulWidget {
   final FFI ffi;
   final ValueChanged<int>? onChanged;
-  const MobileCustomScaleControls({Key? key, required this.ffi, this.onChanged}) : super(key: key);
+  const MobileCustomScaleControls({super.key, required this.ffi, this.onChanged});
 
   @override
   State<MobileCustomScaleControls> createState() => _MobileCustomScaleControlsState();