diff --git a/static/locales/zh-TW.yaml b/static/locales/zh-TW.yaml
index 75ee799b..39bf3d8c 100644
--- a/static/locales/zh-TW.yaml
+++ b/static/locales/zh-TW.yaml
@@ -116,6 +116,7 @@ Settings:
     Check for Latest Blog Posts: 檢查最新的部落格貼文
     Check for Updates: 檢查更新
     View all Invidious instance information: 檢視所有 Invidious 站台的資訊
+    System Default: 系統預設值
   Theme Settings:
     Theme Settings: '主題設定'
     Match Top Bar with Main Color: '頂部功能表欄對應主色彩'