diff --git a/po/zh_CN.po b/po/zh_CN.po
index 6367d4e5c..e3aa0e99b 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -1193,7 +1193,7 @@ msgstr "星期三"
 
 #: js/messages.php:125
 msgid "Thursday"
-msgstr ""
+msgstr "星期四"
 
 #: js/messages.php:126
 #, fuzzy