diff --git a/locales/it-IT.yml b/locales/it-IT.yml
index 0491a6df94..ddeaef3112 100644
--- a/locales/it-IT.yml
+++ b/locales/it-IT.yml
@@ -670,10 +670,12 @@ desktop/views/components/note-detail.vue:
   location: "位置情報"
   renote: "Renote"
   add-reaction: "リアクション"
+  undo-reaction: "リアクション解除"
 desktop/views/components/note.vue:
   reply: "返信"
   renote: "Renote"
   add-reaction: "リアクション"
+  undo-reaction: "リアクション解除"
   detail: "詳細"
   private: "この投稿は非公開です"
   deleted: "この投稿は削除されました"