diff --git a/index.php b/index.php
index 36ba76d13e..4f5c2d40cd 100644
--- a/index.php
+++ b/index.php
@@ -9,6 +9,7 @@ declare(strict_types=1);
 
 use FastRoute\Dispatcher;
 use PhpMyAdmin\Message;
+use PhpMyAdmin\Response;
 
 use function FastRoute\simpleDispatcher;
 
@@ -16,7 +17,7 @@ if (! defined('ROOT_PATH')) {
     define('ROOT_PATH', __DIR__ . DIRECTORY_SEPARATOR);
 }
 
-global $route;
+global $containerBuilder, $route;
 
 require_once ROOT_PATH . 'libraries/common.inc.php';
 
@@ -41,11 +42,17 @@ $routeInfo = $dispatcher->dispatch(
     rawurldecode($route)
 );
 if ($routeInfo[0] === Dispatcher::NOT_FOUND) {
+    /** @var Response $response */
+    $response = $containerBuilder->get(Response::class);
+    $response->setHttpResponseCode(404);
     Message::error(sprintf(
         __('Error 404! The page %s was not found.'),
         '<code>' . ($route) . '</code>'
     ))->display();
 } elseif ($routeInfo[0] === Dispatcher::METHOD_NOT_ALLOWED) {
+    /** @var Response $response */
+    $response = $containerBuilder->get(Response::class);
+    $response->setHttpResponseCode(405);
     Message::error(__('Error 405! Request method not allowed.'))->display();
 } elseif ($routeInfo[0] === Dispatcher::FOUND) {
     $handler = $routeInfo[1];