diff --git a/tool/localization/localization_constants.dart b/tool/localization/localization_constants.dart
index 5acf701af..2d2be7095 100644
--- a/tool/localization/localization_constants.dart
+++ b/tool/localization/localization_constants.dart
@@ -21,7 +21,7 @@ import \'package:flutter/material.dart\';
 class S implements WidgetsLocalizations {
   const S();
 
-  static S current;
+  static late S current;
 
   static const GeneratedLocalizationsDelegate delegate =
     GeneratedLocalizationsDelegate();