diff --git a/holidays/plan2/holiday_tw_zh b/holidays/plan2/holiday_tw_zh
--- a/holidays/plan2/holiday_tw_zh
+++ b/holidays/plan2/holiday_tw_zh
@@ -5,7 +5,7 @@
 ::
 :: Author:   Ricky Lindén <pm@rickylinden.com>
 ::
-:: Updated:  2020-04-16
+:: Updated:  2020-05-03
 ::
 :: Source:   https://www.timeanddate.com/holidays/taiwan/
 ::           https://en.wikipedia.org/wiki/Public_holidays_in_Taiwan
@@ -13,7 +13,7 @@
 
 :: Metadata
 country     "TW"
-language    "tw_zh"
+language    "zh_TW"
 :name        "optional - defaults to country name"
 :description "National holiday's for Taiwan"