diff --git a/language/zh_TW/common.lang.php b/language/zh_TW/common.lang.php
index 255206db4..0266ef8ce 100644
--- a/language/zh_TW/common.lang.php
+++ b/language/zh_TW/common.lang.php
@@ -418,4 +418,5 @@ $lang['Last Page'] = '最後一頁';
 $lang['Password is missing. Please enter the password.'] = '密碼沒有輸入，請輸入密碼。';
 $lang['Password confirmation is missing. Please confirm the chosen password.'] = '密碼確認未完成，請確認所選定的密碼。';
 $lang['%d photos per page'] = '每頁 %d 相片';
+$lang['Theme'] = '主題';
 ?>
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