From fe4c6cb8207c34df540fe70d34883dfac3395d48 Mon Sep 17 00:00:00 2001
From: Fabian Franke <mail@fabianfranke.de>
Date: Thu, 9 May 2019 14:41:02 +0200
Subject: [PATCH] set default empty string for refreshToken

---
 src/Tool/ApiCredentials.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Tool/ApiCredentials.php b/src/Tool/ApiCredentials.php
index abfe5f9..8fa04cc 100644
--- a/src/Tool/ApiCredentials.php
+++ b/src/Tool/ApiCredentials.php
@@ -40,7 +40,7 @@ final class ApiCredentials
     /**
      * @var string
      */
-    private $refreshToken;
+    private $refreshToken = '';
 
     /**
      * @param string $authKey
@@ -121,4 +121,4 @@ public function getRefreshToken()
     {
         return $this->refreshToken;
     }
-}
\ No newline at end of file
+}