diff --git a/app/Transformers/InvoiceTransformer.php b/app/Transformers/InvoiceTransformer.php
index b322590b5db0..7a3030516687 100644
--- a/app/Transformers/InvoiceTransformer.php
+++ b/app/Transformers/InvoiceTransformer.php
@@ -154,8 +154,8 @@ class InvoiceTransformer extends EntityTransformer
             'partial_due_date' => $invoice->partial_due_date ?: '',
             'custom_value1' => (float) $invoice->custom_value1,
             'custom_value2' => (float) $invoice->custom_value2,
-            'custom_taxes1' => (bool) $invoice->custom_taxes1,
-            'custom_taxes2' => (bool) $invoice->custom_taxes2,
+            'custom_value3' => (bool) $invoice->custom_value3,
+            'custom_value4' => (bool) $invoice->custom_value4,
             'has_tasks' => (bool) $invoice->has_tasks,
             'has_expenses' => (bool) $invoice->has_expenses,
             'custom_text_value1' => $invoice->custom_text_value1 ?: '',