diff --git a/src/languages/README.md b/src/languages/README.md
index 7a3ed0602..f97799176 100644
--- a/src/languages/README.md
+++ b/src/languages/README.md
@@ -2,7 +2,7 @@
 
 1. Fork this repo.
 2. Create a language file (e.g. `zh-TW.js`). The filename must be ISO language code: http://www.lingoes.net/en/translator/langcode.htm
-3. `npm run update-language-files --base-lang=en`
+3. `npm run update-language-files`
 4. Your language file should be filled in. You can translate now.
 5. Translate `src/pages/Settings.vue` (search for a `Confirm` component with `rel="confirmDisableAuth"`).
 6. Import your language file in `src/i18n.js` and add it to `languageList` constant.