diff --git a/app_pojavlauncher/src/main/res/values-zh-rCN/strings.xml b/app_pojavlauncher/src/main/res/values-zh-rCN/strings.xml
index 1870a9c03..34211db34 100644
--- a/app_pojavlauncher/src/main/res/values-zh-rCN/strings.xml
+++ b/app_pojavlauncher/src/main/res/values-zh-rCN/strings.xml
@@ -12,7 +12,7 @@
     <string name="login_online_check_keeplogin">保持登录状态</string>
     <string name="login_online_login_label">登录</string>
     <string name="login_offline_label">以离线账号登录</string>
-    <string name="login_error_short_username">用户名至少为3字符长</string>
+    <string name="login_error_invalid_username">无效的用户名。用户名必须在3-16个字符的范围内，只能包含A-Z、a-z、0-9和下划线。</string>
     <string name="login_error_exist_username">用户名已存在</string>
     <string name="login_error_offline_password">离线账号不能填写密码！</string>
     <string name="login_microsoft">微软帐号登录</string>