diff --git a/src/Someline/Rest/RestClient.php b/src/Someline/Rest/RestClient.php
index 35fc1c6..3358c41 100755
--- a/src/Someline/Rest/RestClient.php
+++ b/src/Someline/Rest/RestClient.php
@@ -416,7 +416,7 @@ public function withOAuthTokenTypePassword($requestData = null)
      */
     public function withOAuthTokenTypeClientCredentials($requestData = null)
     {
-        return $this->withOAuthToken(self::GRANT_TYPE_REFRESH_TOKEN, $requestData);
+        return $this->withOAuthToken(self::GRANT_TYPE_CLIENT_CREDENTIALS, $requestData);
     }
 
     /**