diff --git a/framework/core/src/Admin/WhenSavingSettings.php b/framework/core/src/Admin/WhenSavingSettings.php
index 7cdf769783..25e62a5443 100644
--- a/framework/core/src/Admin/WhenSavingSettings.php
+++ b/framework/core/src/Admin/WhenSavingSettings.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
 namespace Flarum\Admin;
 
 use Flarum\Frontend\AssetManager;
diff --git a/framework/core/src/Extension/ExtensionServiceProvider.php b/framework/core/src/Extension/ExtensionServiceProvider.php
index 0f65c37b5a..4aee718b26 100644
--- a/framework/core/src/Extension/ExtensionServiceProvider.php
+++ b/framework/core/src/Extension/ExtensionServiceProvider.php
@@ -11,7 +11,6 @@
 
 use Flarum\Extension\Event\Disabling;
 use Flarum\Foundation\AbstractServiceProvider;
-use Flarum\Foundation\MaintenanceMode;
 use Illuminate\Contracts\Container\Container;
 use Illuminate\Contracts\Events\Dispatcher;
 
diff --git a/framework/core/src/Frontend/AssetManager.php b/framework/core/src/Frontend/AssetManager.php
index 8d4880fd85..18bdc1ebff 100644
--- a/framework/core/src/Frontend/AssetManager.php
+++ b/framework/core/src/Frontend/AssetManager.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
 namespace Flarum\Frontend;
 
 use Flarum\Locale\LocaleManager;