diff --git a/src/REST/ClientRaw.php b/src/REST/ClientRaw.php
index 5fbb1c7..197c2fd 100644
--- a/src/REST/ClientRaw.php
+++ b/src/REST/ClientRaw.php
@@ -66,7 +66,7 @@ public function __construct(
      *
      * @return ClientRaw
      */
-    public function setAuth(string $login, string $secret) : ClientRaw
+    public function setAuth(string $login, #[\SensitiveParameter] string $secret) : ClientRaw
     {
         $this->login    = $login;
         $this->secret   = $secret;