diff --git a/tests/TransactionTest.php b/tests/TransactionTest.php
index a229c231..3c641228 100755
--- a/tests/TransactionTest.php
+++ b/tests/TransactionTest.php
@@ -85,6 +85,7 @@ private function startTransactionFull()
                 'zipCode' => '5678CD',
                 'city' => 'ITest',
                 'country' => 'NL',
+                'gender' => 'F'
             ),
         ));
         return $result;