diff --git a/extend/base/admin/model/SystemConfigBase.php b/extend/base/admin/model/SystemConfigBase.php
index da1d6b6..047d5c8 100644
--- a/extend/base/admin/model/SystemConfigBase.php
+++ b/extend/base/admin/model/SystemConfigBase.php
@@ -7,4 +7,6 @@ use app\common\model\TimeModel;
 class SystemConfigBase extends TimeModel
 {
     protected $deleteTime = false;
+
+    public const FIELD_LIST_FILE = ['value'];
 }