diff --git a/lib/Dav/CheckPlugin.php b/lib/Dav/CheckPlugin.php
index 21b8eb9c..77abe07e 100644
--- a/lib/Dav/CheckPlugin.php
+++ b/lib/Dav/CheckPlugin.php
@@ -11,12 +11,13 @@
 
 use Sabre\DAV\Server;
 use Sabre\DAV\ServerPlugin;
-use Sabre\DAV\Exception\Forbidden;
 use Sabre\HTTP\RequestInterface;
 use Sabre\HTTP\ResponseInterface;
 
 use OCA\TermsOfService\AppInfo\Application;
 use OCA\TermsOfService\Checker;
+use OCA\TermsOfService\TermsNotSignedException;
+
 
 class CheckPlugin extends ServerPlugin {
 	/** @var Server */
@@ -53,7 +54,7 @@ public function checkToS(RequestInterface $request, ResponseInterface $response)
 		// we instantiate the checker here to make sure sabre auth backend was triggered
 		$checker = \OCP\Server::get(Checker::class);
 		if (!$checker->currentUserHasSigned()) {
-			throw new Forbidden($checker->getForbiddenMessage());
+			throw new TermsNotSignedException($checker->getForbiddenMessage());
 		}
 		return true;
 	}
diff --git a/lib/TermsNotSignedException.php b/lib/TermsNotSignedException.php
new file mode 100644
index 00000000..f14ae8b4
--- /dev/null
+++ b/lib/TermsNotSignedException.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\TermsOfService;
+
+use Sabre\DAV\Exception\Forbidden;
+
+class TermsNotSignedException extends Forbidden {
+}