diff --git a/src/Auth/OAuth/Amazon.php b/src/Auth/OAuth/Amazon.php
index 71bb8aaee6..d249d34214 100644
--- a/src/Auth/OAuth/Amazon.php
+++ b/src/Auth/OAuth/Amazon.php
@@ -15,6 +15,11 @@ class Amazon extends OAuth
      */
     protected $user = [];
 
+    /**
+     * @var array
+     */
+    protected $requiredScope = [];
+    
     /**
      * @return string
      */