diff --git a/apps/dav/composer/composer/autoload_classmap.php b/apps/dav/composer/composer/autoload_classmap.php
index 5f7815a9bfc8b..1539cdc2a7648 100644
--- a/apps/dav/composer/composer/autoload_classmap.php
+++ b/apps/dav/composer/composer/autoload_classmap.php
@@ -225,6 +225,7 @@
     'OCA\\DAV\\Events\\SubscriptionCreatedEvent' => $baseDir . '/../lib/Events/SubscriptionCreatedEvent.php',
     'OCA\\DAV\\Events\\SubscriptionDeletedEvent' => $baseDir . '/../lib/Events/SubscriptionDeletedEvent.php',
     'OCA\\DAV\\Events\\SubscriptionUpdatedEvent' => $baseDir . '/../lib/Events/SubscriptionUpdatedEvent.php',
+    'OCA\\DAV\\Exception\\ServerMaintenanceMode' => $baseDir . '/../lib/Exception/ServerMaintenanceMode.php',
     'OCA\\DAV\\Exception\\UnsupportedLimitOnInitialSyncException' => $baseDir . '/../lib/Exception/UnsupportedLimitOnInitialSyncException.php',
     'OCA\\DAV\\Files\\BrowserErrorPagePlugin' => $baseDir . '/../lib/Files/BrowserErrorPagePlugin.php',
     'OCA\\DAV\\Files\\FileSearchBackend' => $baseDir . '/../lib/Files/FileSearchBackend.php',
diff --git a/apps/dav/composer/composer/autoload_static.php b/apps/dav/composer/composer/autoload_static.php
index 1f57b8b043afc..d432fc55324de 100644
--- a/apps/dav/composer/composer/autoload_static.php
+++ b/apps/dav/composer/composer/autoload_static.php
@@ -240,6 +240,7 @@ class ComposerStaticInitDAV
         'OCA\\DAV\\Events\\SubscriptionCreatedEvent' => __DIR__ . '/..' . '/../lib/Events/SubscriptionCreatedEvent.php',
         'OCA\\DAV\\Events\\SubscriptionDeletedEvent' => __DIR__ . '/..' . '/../lib/Events/SubscriptionDeletedEvent.php',
         'OCA\\DAV\\Events\\SubscriptionUpdatedEvent' => __DIR__ . '/..' . '/../lib/Events/SubscriptionUpdatedEvent.php',
+        'OCA\\DAV\\Exception\\ServerMaintenanceMode' => __DIR__ . '/..' . '/../lib/Exception/ServerMaintenanceMode.php',
         'OCA\\DAV\\Exception\\UnsupportedLimitOnInitialSyncException' => __DIR__ . '/..' . '/../lib/Exception/UnsupportedLimitOnInitialSyncException.php',
         'OCA\\DAV\\Files\\BrowserErrorPagePlugin' => __DIR__ . '/..' . '/../lib/Files/BrowserErrorPagePlugin.php',
         'OCA\\DAV\\Files\\FileSearchBackend' => __DIR__ . '/..' . '/../lib/Files/FileSearchBackend.php',
diff --git a/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php b/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php
index b4df1f582dbe7..a3cce9f06da7a 100644
--- a/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php
@@ -29,6 +29,7 @@
 
 use OCA\DAV\Connector\Sabre\Exception\FileLocked;
 use OCA\DAV\Connector\Sabre\Exception\PasswordLoginForbidden;
+use OCA\DAV\Exception\ServerMaintenanceMode;
 use OCP\Files\StorageNotAvailableException;
 use OCP\ILogger;
 use Sabre\DAV\Exception\BadRequest;
@@ -81,6 +82,7 @@ class ExceptionLoggerPlugin extends \Sabre\DAV\ServerPlugin {
 		FileLocked::class => true,
 		// An invalid range is requested
 		RequestedRangeNotSatisfiable::class => true,
+		ServerMaintenanceMode::class => true,
 	];
 
 	/** @var string */
@@ -120,12 +122,7 @@ public function initialize(\Sabre\DAV\Server $server) {
 	public function logException(\Throwable $ex) {
 		$exceptionClass = get_class($ex);
 		$level = ILogger::FATAL;
-		if (isset($this->nonFatalExceptions[$exceptionClass]) ||
-			(
-				$exceptionClass === ServiceUnavailable::class &&
-				$ex->getMessage() === 'System in maintenance mode.'
-			)
-		) {
+		if (isset($this->nonFatalExceptions[$exceptionClass])) {
 			$level = ILogger::DEBUG;
 		}
 
diff --git a/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php b/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php
index e7e3b273b98b1..1fc0232080541 100644
--- a/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php
+++ b/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php
@@ -27,6 +27,7 @@
  */
 namespace OCA\DAV\Connector\Sabre;
 
+use OCA\DAV\Exception\ServerMaintenanceMode;
 use OCP\IConfig;
 use OCP\IL10N;
 use OCP\Util;
@@ -82,10 +83,10 @@ public function initialize(\Sabre\DAV\Server $server) {
 	 */
 	public function checkMaintenanceMode() {
 		if ($this->config->getSystemValueBool('maintenance')) {
-			throw new ServiceUnavailable($this->l10n->t('System is in maintenance mode.'));
+			throw new ServerMaintenanceMode($this->l10n->t('System is in maintenance mode.'));
 		}
 		if (Util::needUpgrade()) {
-			throw new ServiceUnavailable($this->l10n->t('Upgrade needed'));
+			throw new ServerMaintenanceMode($this->l10n->t('Upgrade needed'));
 		}
 
 		return true;
diff --git a/apps/dav/lib/Exception/ServerMaintenanceMode.php b/apps/dav/lib/Exception/ServerMaintenanceMode.php
new file mode 100644
index 0000000000000..9dad9f2d4d146
--- /dev/null
+++ b/apps/dav/lib/Exception/ServerMaintenanceMode.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2022 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCA\DAV\Exception;
+
+use Sabre\DAV\Exception\ServiceUnavailable;
+
+class ServerMaintenanceMode extends ServiceUnavailable {
+
+}
diff --git a/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php
index 83f8c4165778c..f2a4e39462069 100644
--- a/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php
@@ -31,8 +31,8 @@
 use OC\SystemConfig;
 use OCA\DAV\Connector\Sabre\Exception\InvalidPath;
 use OCA\DAV\Connector\Sabre\ExceptionLoggerPlugin as PluginToTest;
+use OCA\DAV\Exception\ServerMaintenanceMode;
 use Sabre\DAV\Exception\NotFound;
-use Sabre\DAV\Exception\ServiceUnavailable;
 use Sabre\DAV\Server;
 use Test\TestCase;
 
@@ -91,8 +91,8 @@ public function testLogging($expectedLogLevel, $expectedMessage, $exception) {
 	public function providesExceptions() {
 		return [
 			[0, '', new NotFound()],
-			[0, 'System in maintenance mode.', new ServiceUnavailable('System in maintenance mode.')],
-			[4, 'Upgrade needed', new ServiceUnavailable('Upgrade needed')],
+			[0, 'System in maintenance mode.', new ServerMaintenanceMode('System in maintenance mode.')],
+			[0, 'Upgrade needed', new ServerMaintenanceMode('Upgrade needed')],
 			[4, 'This path leads to nowhere', new InvalidPath('This path leads to nowhere')]
 		];
 	}