diff --git a/app/src/main/res/values-zh-rTW/strings-preferences.xml b/app/src/main/res/values-zh-rTW/strings-preferences.xml
index f185f4c3..5fb5d1b2 100644
--- a/app/src/main/res/values-zh-rTW/strings-preferences.xml
+++ b/app/src/main/res/values-zh-rTW/strings-preferences.xml
@@ -112,4 +112,5 @@
   <string name="prefs_compass_heading">匯出羅盤方位</string>
   <string name="prefs_compass_heading_summary">定義羅盤資料要如何匯出到 GPX 檔案</string>
   <string name="prefs_reset_default_value">重設預設值</string>
+  <string name="prefs_not_set">還未設定</string>
 </resources>