diff --git a/apps/twofactor_backupcodes/lib/AppInfo/Application.php b/apps/twofactor_backupcodes/lib/AppInfo/Application.php
index 041af03706785942e9f76c7150128350df89bcd7..c4e02aaa26141c91e0039d567490f075028473c9 100644
--- a/apps/twofactor_backupcodes/lib/AppInfo/Application.php
+++ b/apps/twofactor_backupcodes/lib/AppInfo/Application.php
@@ -74,15 +74,7 @@ class Application extends App {
 		$container = $this->getContainer();
 		/** @var IManager $manager */
 		$manager = $container->query(IManager::class);
-		$manager->registerNotifier(
-			function() use ($container) {
-				return $container->query(Notifier::class);
-			},
-			function () use ($container) {
-				$l = $container->query(IL10N::class);
-				return ['id' => 'twofactor_backupcodes', 'name' => $l->t('Second-factor backup codes')];
-			}
-		);
+		$manager->registerNotifier(Notifier::class);
 	}
 
 	public function deleteUser($params) {
diff --git a/apps/twofactor_backupcodes/lib/Notifications/Notifier.php b/apps/twofactor_backupcodes/lib/Notifications/Notifier.php
index df92c7a9e014e30371f85dc3f4b2d29953520c83..5e53a32df77403b19f8c0192e899fdd79832bc1b 100644
--- a/apps/twofactor_backupcodes/lib/Notifications/Notifier.php
+++ b/apps/twofactor_backupcodes/lib/Notifications/Notifier.php
@@ -42,7 +42,27 @@ class Notifier implements INotifier {
 		$this->url = $url;
 	}
 
-	public function prepare(INotification $notification, $languageCode) {
+	/**
+	 * Identifier of the notifier, only use [a-z0-9_]
+	 *
+	 * @return string
+	 * @since 17.0.0
+	 */
+	public function getID(): string {
+		return 'twofactor_backupcodes';
+	}
+
+	/**
+	 * Human readable name describing the notifier
+	 *
+	 * @return string
+	 * @since 17.0.0
+	 */
+	public function getName(): string {
+		return $this->factory->get('twofactor_backupcodes')->t('Second-factor backup codes');
+	}
+
+	public function prepare(INotification $notification, string $languageCode): INotification {
 		if ($notification->getApp() !== 'twofactor_backupcodes') {
 			// Not my app => throw
 			throw new \InvalidArgumentException();
@@ -67,5 +87,4 @@ class Notifier implements INotifier {
 				throw new \InvalidArgumentException();
 		}
 	}
-
 }