diff --git a/app/Ninja/Repositories/InvoiceRepository.php b/app/Ninja/Repositories/InvoiceRepository.php
index 7a156dfbe..2527a601e 100644
--- a/app/Ninja/Repositories/InvoiceRepository.php
+++ b/app/Ninja/Repositories/InvoiceRepository.php
@@ -732,6 +732,8 @@ class InvoiceRepository extends BaseRepository
                 'tax_rate1',
                 'tax_name2',
                 'tax_rate2',
+                'custom_value1',
+                'custom_value2',
             ] as $field) {
                 $cloneItem->$field = $item->$field;
             }