diff --git a/locales/index.js b/locales/index.js
index 8350b3d9c..8d15b5f8d 100644
--- a/locales/index.js
+++ b/locales/index.js
@@ -26,6 +26,7 @@ const languages = [
 	'it-IT',
 	'ja-JP',
 	'ja-KS',
+	'ja-NYA',
 	'kab-KAB',
 	'kn-IN',
 	'ko-KR',
@@ -57,6 +58,7 @@ module.exports = Object.entries(locales)
 		switch (k) {
 			case 'ja-JP': return v;
 			case 'ja-KS':
+			case 'ja-NYA':
 			case 'en-US': return merge(locales['ja-JP'], v);
 			default: return merge(
 				locales['ja-JP'],