diff --git a/app/Http/Controllers/Admin/ProductController.php b/app/Http/Controllers/Admin/ProductController.php
index 9f58af3..337e38d 100755
--- a/app/Http/Controllers/Admin/ProductController.php
+++ b/app/Http/Controllers/Admin/ProductController.php
@@ -91,7 +91,7 @@ class ProductController extends CommonController
             "model" => $vo
         ]);
         $form->add("_previous", "hidden", ["value" => (url()->previous())]);
-        $this->modify("factor_id", 'select', ["label" => "统计价格因素",
+        $form->modify("factor_id", 'select', ["label" => "统计价格因素",
             "choices" => (new Factor())->where('product_id', $request->id)->get()->pluck("name", "id")->toArray()]
         );
         return view($this->bladePath . ".create", compact("form", "project", "vo"));