diff --git a/po/zh_TW.po b/po/zh_TW.po
index 07786ac749..7f953038f2 100644
--- a/po/zh_TW.po
+++ b/po/zh_TW.po
@@ -2273,7 +2273,7 @@ msgstr "輸入值不是非負數"
 #: libraries/config/FormDisplay.class.php:85
 #: libraries/config/validate.lib.php:409
 msgid "Not a valid port number"
-msgstr ""
+msgstr "非法的端口號"
 
 #: libraries/config/FormDisplay.class.php:86
 #: libraries/config/FormDisplay.class.php:574