From b8fb7f254b65a30ca168c5b3b98f83c5fc7b18b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20=C4=8Ciha=C5=99?= <michal@cihar.com>
Date: Mon, 27 Nov 2017 22:24:06 +0100
Subject: [PATCH] Fix referenceding twofactor attribute
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Fixes #13832

Signed-off-by: Michal Čihař <michal@cihar.com>
---
 libraries/classes/Plugins/AuthenticationPlugin.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/classes/Plugins/AuthenticationPlugin.php b/libraries/classes/Plugins/AuthenticationPlugin.php
index 7e19a42e15..b9f3762ba7 100644
--- a/libraries/classes/Plugins/AuthenticationPlugin.php
+++ b/libraries/classes/Plugins/AuthenticationPlugin.php
@@ -337,7 +337,7 @@ abstract class AuthenticationPlugin
         )->display();
         echo Template::get('login/twofactor')->render([
             'form' => $twofactor->render(),
-            'show_submit' => $twofactor->showSubmit,
+            'show_submit' => $twofactor->backend::$showSubmit,
         ]);
         echo Template::get('login/footer')->render();
         echo Config::renderFooter();