diff --git a/web/gui/src/main/resources/org/onosproject/ui/lion/core/fw/Mast_zh_TW.properties b/web/gui/src/main/resources/org/onosproject/ui/lion/core/fw/Mast_zh_TW.properties
index 923dc04e1d..f3dabaecb7 100644
--- a/web/gui/src/main/resources/org/onosproject/ui/lion/core/fw/Mast_zh_TW.properties
+++ b/web/gui/src/main/resources/org/onosproject/ui/lion/core/fw/Mast_zh_TW.properties
@@ -19,5 +19,14 @@
 # Tooltip for context-sensitive help button [?]
 tt_help=顯示本頁說明
 
+# unknown user
+unknown_user=(未知使用者)
+
 # Logout button
 logout=登出
+
+# UI components added/removed, etc.
+uicomp_added=新元件已新增
+uicomp_removed=有元件已被移除
+ui_ok_to_update=點擊確定更新介面
+confirm_refresh_title=確認重整介面