diff --git a/functions.php b/functions.php
index c3308b2..90ad8eb 100644
--- a/functions.php
+++ b/functions.php
@@ -378,8 +378,7 @@ function kjweji_customize_register($wp_customize) {
 // tucao 自动生成标题
 add_filter('wp_insert_post_data', function($data) {
     if ($data['post_type'] === 'tucao' && empty($data['post_title'])) {
-        $content = wp_strip_all_tags($data['post_content'] ?? '');
-        $data['post_title'] = mb_substr($content ?: '微言', 0, 30);
+        $data['post_title'] = '微言-' . time();
     }
     return $data;
 });