diff --git a/app/Models/Host.php b/app/Models/Host.php
index 281e15f..629405c 100644
--- a/app/Models/Host.php
+++ b/app/Models/Host.php
@@ -111,7 +111,7 @@ public function cost($price = null)
 
         $month = now()->month;
 
-        $month_cache_key = 'user_' . $this->user_id . '_month_' . $month . 'hosts_drops';
+        $month_cache_key = 'user_' . $this->user_id . '_month_' . $month . '_hosts_drops';
         $hosts_drops = Cache::get($month_cache_key, []);
 
         // 统计 Host 消耗的 Drops