diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
index 66abdff023..c1e838f79b 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
@@ -410,7 +410,7 @@ class FrameworkExtension extends Extension
         ]);
 
         if (class_exists(MimeTypes::class)) {
-            $loader->load('mime_type.xml');
+            $phpLoader->load('mime_type.php');
         }
 
         $container->registerForAutoconfiguration(Command::class)
diff --git a/src/Symfony/Bundle/FrameworkBundle/Resources/config/mime_type.php b/src/Symfony/Bundle/FrameworkBundle/Resources/config/mime_type.php
new file mode 100644
index 0000000000..0d874a07ed
--- /dev/null
+++ b/src/Symfony/Bundle/FrameworkBundle/Resources/config/mime_type.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Loader\Configurator;
+
+use Symfony\Component\Mime\MimeTypes;
+
+return static function (ContainerConfigurator $container) {
+    $container->services()
+        ->set('mime_types', MimeTypes::class)
+            ->call('setDefault', [service('mime_types')])
+    ;
+};
diff --git a/src/Symfony/Bundle/FrameworkBundle/Resources/config/mime_type.xml b/src/Symfony/Bundle/FrameworkBundle/Resources/config/mime_type.xml
deleted file mode 100644
index d4c1eb15b9..0000000000
--- a/src/Symfony/Bundle/FrameworkBundle/Resources/config/mime_type.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" ?>
-
-<container xmlns="http://symfony.com/schema/dic/services"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://symfony.com/schema/dic/services https://symfony.com/schema/dic/services/services-1.0.xsd">
-
-    <services>
-        <defaults public="false" />
-
-        <service id="mime_types" class="Symfony\Component\Mime\MimeTypes">
-            <call method="setDefault">
-                <argument type="service" id="mime_types" />
-            </call>
-        </service>
-    </services>
-</container>