diff --git a/app/library/OAuth/Adapter/League.php b/app/library/OAuth/Adapter/League.php
index cf85b14..3d04fdf 100644
--- a/app/library/OAuth/Adapter/League.php
+++ b/app/library/OAuth/Adapter/League.php
@@ -15,6 +15,7 @@ class League implements AdapterInterface
     protected $_providerClasses = array(
         'github' => '\League\OAuth2\Client\Provider\Github',
         'gitlab' => '\Omines\OAuth2\Client\Provider\Gitlab',
+        'google' => '\League\OAuth2\Client\Provider\Google',
     );
 
     /**