diff --git a/ja.json b/ja.json
index eb76d23..1146525 100644
--- a/ja.json
+++ b/ja.json
@@ -864,6 +864,7 @@
         "CreateNew.Back": "<<< <i>戻る</i>",
         "CreateNew.EmptyObject": "空オブジェクト",
         "CreateNew.ParticleSystem": "パーティクル​システム",
+        "CreateNew.LegacyParticleSystem": "レガシーパーティクルシステム",
 
         "CreateNew.Object": "オブジェクト",
         "CreateNew.Object.AvatarCreator": "アバター​クリエイター",