diff --git a/library/think/Model.php b/library/think/Model.php
index d0201a00..f1d28155 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -943,7 +943,8 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
                 $this->setAttr($key, $value, $data);
             }
             if (!empty($where)) {
-                $this->isUpdate = true;
+                $this->isUpdate    = true;
+                $this->updateWhere = $where;
             }
         }