diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 0a137570c..128ba9721 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -436,4 +436,5 @@
     <string name="export_playlists_to">導出播放列表</string>
     <string name="import_format_piped">Piped / LibreTube</string>
     <string name="home_tab_content">家分頁內容</string>
+    <string name="mark_as_unwatched">標記為尚未觀看</string>
 </resources>
\ No newline at end of file