diff --git a/library/think/model/Pivot.php b/library/think/model/Pivot.php
index 8c04266d..3fdd58fc 100644
--- a/library/think/model/Pivot.php
+++ b/library/think/model/Pivot.php
@@ -37,8 +37,6 @@ class Pivot extends Model
         }
 
         parent::__construct($data);
-
-        $this->class = $this->name;
     }
 
 }