diff --git a/app/Models/Invoice.php b/app/Models/Invoice.php
index fe79657ff926..848dd0a2cc4a 100644
--- a/app/Models/Invoice.php
+++ b/app/Models/Invoice.php
@@ -894,6 +894,7 @@ class Invoice extends EntityModel implements BalanceAffecting
             'page_size',
             'include_item_taxes_inline',
             'invoice_fields',
+            'show_currency_code',
         ]);
 
         foreach ($this->invoice_items as $invoiceItem) {