diff --git a/src/i18n/strings/ja.json b/src/i18n/strings/ja.json
index fba24eddf3..47e53e2ffe 100644
--- a/src/i18n/strings/ja.json
+++ b/src/i18n/strings/ja.json
@@ -1300,5 +1300,8 @@
     "Recent years are easy to guess": "最近の年号は推測されやすいです",
     "Dates are often easy to guess": "たいていの日付は推測されやすいです",
     "Whether or not you're logged in (we don't record your username)": "ログインしているか否か（私たちはあなたのユーザー名を記録しません）",
-    "Upgrade": "アップグレード"
+    "Upgrade": "アップグレード",
+    "Sets the room name": "部屋名を設定する",
+    "Change room name": "部屋名を変える",
+    "Room Name": "部屋名"
 }