diff --git a/lib/ravelin/payment_method.rb b/lib/ravelin/payment_method.rb
index 0343c69..ba2501f 100644
--- a/lib/ravelin/payment_method.rb
+++ b/lib/ravelin/payment_method.rb
@@ -23,6 +23,7 @@ class PaymentMethod < RavelinObject
       :custom,
       :e_wallet,
       :scheme
+      :transfer_type
 
     attr_required :payment_method_id, :method_type
   end