diff --git a/wagtail/wagtailadmin/locale/zh/LC_MESSAGES/django.po b/wagtail/wagtailadmin/locale/zh/LC_MESSAGES/django.po
index 80a75d43f..954cfc62b 100644
--- a/wagtail/wagtailadmin/locale/zh/LC_MESSAGES/django.po
+++ b/wagtail/wagtailadmin/locale/zh/LC_MESSAGES/django.po
@@ -31,7 +31,7 @@ msgstr "搜索词"
 
 #: .\forms.py:42
 msgid "Enter your username"
-msgstr ""
+msgstr "请输入用户名"
 
 #: .\forms.py:45
 msgid "Enter password"