diff --git a/lib/l10n/app_zh_CN.arb b/lib/l10n/app_zh_CN.arb
index 02f9fddb..685346f6 100644
--- a/lib/l10n/app_zh_CN.arb
+++ b/lib/l10n/app_zh_CN.arb
@@ -1,5 +1,5 @@
 {
-  "@@locale": "zh-CN",
+  "@@locale": "zh_CN",
   "@@context": "App level localization strings.",
   "datetime_format": "yyyy/MM/dd HH:mm:ss",
   "@datetime_format": {
@@ -1774,4 +1774,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}