diff --git a/index.ts b/index.ts
index 6856e461..dca1da38 100755
--- a/index.ts
+++ b/index.ts
@@ -116,7 +116,7 @@ async function init() {
 
   const forceOverwrite = argv.force
 
-  const language = getLanguage()
+  const language = getLanguage(argv.lang)
 
   let result: {
     projectName?: string
diff --git a/utils/getLanguage.ts b/utils/getLanguage.ts
index 325cb574..890a307f 100644
--- a/utils/getLanguage.ts
+++ b/utils/getLanguage.ts
@@ -56,8 +56,8 @@ function getLocale() {
   return locale
 }
 
-export default function getLanguage() {
-  const locale = getLocale()
+export default function getLanguage(lang?: string) {
+  const locale = lang ?? getLocale()
 
   // Note here __dirname would not be transpiled,
   // so it refers to the __dirname of the file `<repositoryRoot>/outfile.cjs`
@@ -72,9 +72,9 @@ export default function getLanguage() {
     )
   }
 
-  const lang: Language = doesLanguageExist
+  const _lang: Language = doesLanguageExist
     ? require(languageFilePath)
     : require(path.resolve(localesRoot, 'en-US.json'))
 
-  return lang
+  return _lang
 }