diff --git a/app/adminapi/validate/material/MaterialPurchaseRequestValidate.php b/app/adminapi/validate/material/MaterialPurchaseRequestValidate.php
index ea4ad05bb..3040e50c6 100644
--- a/app/adminapi/validate/material/MaterialPurchaseRequestValidate.php
+++ b/app/adminapi/validate/material/MaterialPurchaseRequestValidate.php
@@ -82,7 +82,7 @@ class MaterialPurchaseRequestValidate extends BaseValidate
      */
     public function sceneEdit()
     {
-	    return $this->remove('flow_id',true)->remove('path',true);
+	    return $this->remove('flow_id',true)->remove('path',true)->remove('purchase_request_detail',true);
     }