diff --git a/src/PaymentMethods/In3/Service/ParameterKeys/PhoneAdapter.php b/src/PaymentMethods/In3/Service/ParameterKeys/PhoneAdapter.php
index f18dd568..b14298c5 100644
--- a/src/PaymentMethods/In3/Service/ParameterKeys/PhoneAdapter.php
+++ b/src/PaymentMethods/In3/Service/ParameterKeys/PhoneAdapter.php
@@ -25,6 +25,6 @@
 class PhoneAdapter extends ServiceParametersKeysAdapter
 {
     protected array $keys = [
-        'mobile' => 'MobilePhone'
+        'mobile' => 'Phone'
     ];
 }