From f6b890e284ea523f7be320c0bd109a6451c77f89 Mon Sep 17 00:00:00 2001
From: James Cole <james@firefly-iii.org>
Date: Mon, 12 Apr 2021 14:09:17 +0200
Subject: [PATCH] Fix #4652

---
 app/Http/Controllers/Auth/TwoFactorController.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/Http/Controllers/Auth/TwoFactorController.php b/app/Http/Controllers/Auth/TwoFactorController.php
index 753e4aeb3a..453725b718 100644
--- a/app/Http/Controllers/Auth/TwoFactorController.php
+++ b/app/Http/Controllers/Auth/TwoFactorController.php
@@ -59,7 +59,7 @@ class TwoFactorController extends Controller
     {
         /** @var array $mfaHistory */
         $mfaHistory = Preferences::get('mfa_history', [])->data;
-        $mfaCode    = $request->get('one_time_password');
+        $mfaCode    = (string)$request->get('one_time_password');
 
         // is in history? then refuse to use it.
         if ($this->inMFAHistory($mfaCode, $mfaHistory)) {