diff --git a/app/Domains/Virtual/Services/OrderService.php b/app/Domains/Virtual/Services/OrderService.php
index 6ab2ad5d..3bb67abb 100644
--- a/app/Domains/Virtual/Services/OrderService.php
+++ b/app/Domains/Virtual/Services/OrderService.php
@@ -142,7 +142,10 @@ class OrderService extends Service
                 throw new NotExistException('订单不存在或已删除');
             }
 
-            $node->extends = array_merge($node->extends, $attributes['extends']);
+            if (!empty($attributes['extends']) && is_array($attributes['extends'])) {
+                $node->extends = array_merge($node->extends ?? [], $attributes['extends']);
+            }
+
 
             $this->orderRepository->setModel($node)->update($attributes);
         }