diff --git a/locales/index.js b/locales/index.js
index 6fe8e7bbc..17fbf264f 100644
--- a/locales/index.js
+++ b/locales/index.js
@@ -24,9 +24,9 @@ const languages = [
 	'fr-FR',
 	'id-ID',
 	'it-IT',
+	'ja-NY',
 	'ja-JP',
 	'ja-KS',
-	'ja-NY',
 	'kab-KAB',
 	'kn-IN',
 	'ko-KR',
@@ -57,8 +57,8 @@ module.exports = Object.entries(locales)
 		const [lang] = k.split('-');
 		switch (k) {
 			case 'ja-JP': return v;
-			case 'ja-KS':
 			case 'ja-NY':
+			case 'ja-KS':
 			case 'en-US': return merge(locales['ja-JP'], v);
 			default: return merge(
 				locales['ja-JP'],
diff --git a/locales/ja-NY.yml b/locales/ja-NY.yml
index 11c17d4c1..453325555 100644
--- a/locales/ja-NY.yml
+++ b/locales/ja-NY.yml
@@ -1,3 +1,4 @@
+---
 _lang_: "日本語(にゃ)"
 
 headlineMisskey: "ノートでつながるネットワークにゃ！"