diff --git a/src/Model/Model.php b/src/Model/Model.php
index 37b7e748460c030ce2816291d296de86bfb983ef..1ca298d546fd88573f36a0da3251c7aa6b2abe24 100644
--- a/src/Model/Model.php
+++ b/src/Model/Model.php
@@ -530,7 +530,7 @@ abstract class Model extends BaseModel
         }
 
         // 关联字段加入序列化
-        $this->__fieldNames = array_merge($this->__fieldNames, $names);
+        $this->__serializedFields = array_merge($this->__serializedFields, $names);
     }
 
     /**