diff --git a/app/Models/ProductionQuantity.php b/app/Models/ProductionQuantity.php
index 93cea1f..797ef7c 100644
--- a/app/Models/ProductionQuantity.php
+++ b/app/Models/ProductionQuantity.php
@@ -19,6 +19,7 @@ class ProductionQuantity extends Model
         "line_id",
         "item_id",
         "serial_number",
+        "production_order",
     ];
 
     public function plant(): BelongsTo