diff --git a/packages/uni-i18n/__tests__/i18n.spec.ts b/packages/uni-i18n/__tests__/i18n.spec.ts
index b2b14efd437ba369d4db8d377b9bb4b9291ac1fe..a245071a5bd982fbd1268bc71ed17734ee577536 100644
--- a/packages/uni-i18n/__tests__/i18n.spec.ts
+++ b/packages/uni-i18n/__tests__/i18n.spec.ts
@@ -47,6 +47,7 @@ const locales: {
   es: 'es',
   'es-AR': 'es',
   'sv-se': 'en', //fallback
+  'ja-CN': 'en', //fallback
 }
 
 describe('i18n', () => {