diff --git a/src/AttachMany.php b/src/AttachMany.php
index 0a13101..ed67b4f 100644
--- a/src/AttachMany.php
+++ b/src/AttachMany.php
@@ -74,7 +74,7 @@ public function __construct($name, $attribute = null, $resource = null)
                     $parent = $request->newResource();
 
                     if (method_exists($parent, $method)) {
-                        $parent->{$method}($changes);
+                        $parent->{$method}($changes, $model);
                     }
                 });