diff --git a/locales/zh-TW.yml b/locales/zh-TW.yml
index 7fbacc136a..455192de29 100644
--- a/locales/zh-TW.yml
+++ b/locales/zh-TW.yml
@@ -544,6 +544,8 @@ showInPage: "在頁面中顯示"
 popout: "彈出式視窗"
 volume: "音量"
 masterVolume: "主音量"
+notUseSound: "無音效輸出"
+useSoundOnlyWhenActive: "啟用時，Misskey 才會輸出音效"
 details: "詳細資訊"
 chooseEmoji: "選擇您的表情符號"
 unableToProcess: "操作無法完成"