diff --git a/language/zh_CN/common.lang.php b/language/zh_CN/common.lang.php
index 6e8a0b5ec..95f2d889b 100644
--- a/language/zh_CN/common.lang.php
+++ b/language/zh_CN/common.lang.php
@@ -429,4 +429,6 @@ $lang['Photo title'] = '相片标题';
 $lang['Album name, A → Z'] = '相册名称， A → Z';
 $lang['Album name, Z → A'] = '相册名称， Z → A';
 $lang['Link: %s'] = '链接： %s';
-$lang['Your authentication key is no longer valid.'] = '您的认证密钥已失效。';
\ No newline at end of file
+$lang['Your authentication key is no longer valid.'] = '您的认证密钥已失效。';
+$lang['Invalid username or password!'] = '用户名或密码无效！';
+$lang['generate random password'] = '生成随机密码';
\ No newline at end of file