diff --git a/src/Ramcar/ModeOfPayment.php b/src/Ramcar/ModeOfPayment.php
index 1b522dde..139dd18c 100644
--- a/src/Ramcar/ModeOfPayment.php
+++ b/src/Ramcar/ModeOfPayment.php
@@ -9,6 +9,7 @@ class ModeOfPayment extends NameValue
     const DEBIT_CARD        = 'debit_card';
     const INSTALLMENT       = 'installment';
     const GCASH             = 'gcash';
+    const CREDIT_CARD_AMEX  = 'credit_card_amex';
 
     const COLLECTION = [
         'cash' => 'Cash',
@@ -16,5 +17,6 @@ class ModeOfPayment extends NameValue
         'debit_card' => 'Debit Card',
         'installment' => 'Installment - BDO',
         'gcash' => 'GCash',
+        'credit_card_amex' => 'Credit Card - AMEX',
     ];
 }