diff --git a/src/i18n/index.js b/src/i18n/index.js
index 7611f57..10e586c 100644
--- a/src/i18n/index.js
+++ b/src/i18n/index.js
@@ -19,10 +19,14 @@ i18n
     },
     ns: ['common', 'group'],
     defaultNS: 'common',
-    // detection: {
-    //   convertDetectedLanguage: 'Iso15897',
-    //   convertDetectedLanguage: (lng) => lng.replace('-', '_')
-    // },
+    detection: {
+      //   convertDetectedLanguage: 'Iso15897',
+      convertDetectedLanguage: (lng) => {
+        const langPart = lng.split('-')[0];
+        return langPart;
+        // return lng.replace('-', '_');
+      },
+    },
     supportedLngs: ['en', 'zh'],
     // resources: {
     //   en: { translation: en },