diff --git a/src/Credential.php b/src/Credential.php
index 36f786a..285a2b9 100644
--- a/src/Credential.php
+++ b/src/Credential.php
@@ -16,6 +16,7 @@
 final readonly class Credential
 {
     public string $merchantId;
+
     public string $merchantKey;
 
     /**