diff --git a/app/Console/Commands/AutoSaveExp.php b/app/Console/Commands/AutoSaveExp.php
index dfee481..07fa3f5 100644
--- a/app/Console/Commands/AutoSaveExp.php
+++ b/app/Console/Commands/AutoSaveExp.php
@@ -96,13 +96,17 @@ class AutoSaveExp extends Command
         $roomMap = [];
         $cursor  = '0';
 
+        // 获取原始 Redis 客户端（不自动加前缀），用于直接操作完整 key 名
+        $rawClient = Redis::connection()->client();
+
         do {
             [$cursor, $keys] = Redis::scan($cursor, ['match' => '*room:*:users', 'count' => 100]);
             foreach ($keys ?? [] as $key) {
                 // 从 key 中提取房间 ID，支持带前缀的格式（如 chatroom-database-room:1:users）
                 if (preg_match('/room:(\d+):users/', $key, $m)) {
                     $roomId    = (int) $m[1];
-                    $usernames = Redis::hkeys($key);
+                    // 直接用原始客户端查找，避免 Laravel 自动加前缀导致 key 被拼接两次
+                    $usernames = $rawClient->hkeys($key);
                     if (! empty($usernames)) {
                         $roomMap[$roomId] = $usernames;
                     }