diff --git a/package/src/i18n/ja.json b/package/src/i18n/ja.json
index 8d91fc904b..828afe41c5 100644
--- a/package/src/i18n/ja.json
+++ b/package/src/i18n/ja.json
@@ -52,6 +52,7 @@
   "You": "あなた",
   "{{ firstUser }} and {{ nonSelfUserLength }} more are typing": "{{ firstUser }}と{{ nonSelfUserLength }}人がタイピングしています",
   "{{ index }} of {{ photoLength }}": "{{ index }} / {{ photoLength }}",
+  "{{ replyCount }} Replies": "{{ replyCount }}件の返信",
   "{{ replyCount }} Thread Replies": "{{ replyCount }}件のスレッド返信",
   "{{ user }} is typing": "{{ user }}はタイピング中",
   "1 Reply": "1件の返信",