diff --git a/System/Jwt/Jwt.php b/System/Jwt/Jwt.php
index 435940ea..f61918e1 100644
--- a/System/Jwt/Jwt.php
+++ b/System/Jwt/Jwt.php
@@ -461,6 +461,9 @@ mlAZUEjsoaT9vjvjGTxl3uCm0TX5KTgtSJIt2kA1tYVjQef+/iZTHxY=
      */
     public function expireRefresh($token = null, $source = null)
     {
+        if (!isset($this->data['token'])) {
+            return;
+        }
         if (!empty($token)) {
             $this->data['token'] = $token;
         }