diff --git a/apps/settings/lib/Settings/Personal/ServerDevNotice.php b/apps/settings/lib/Settings/Personal/ServerDevNotice.php
index 8e08b2c8c7f3d..3f1be7432d017 100644
--- a/apps/settings/lib/Settings/Personal/ServerDevNotice.php
+++ b/apps/settings/lib/Settings/Personal/ServerDevNotice.php
@@ -80,6 +80,9 @@ public function getForm(): TemplateResponse {
 
 		// If the Reasons to use Nextcloud.pdf file is here, let's init Viewer, also check that Viewer is there
 		if (class_exists(LoadViewer::class) && $userFolder->nodeExists('Reasons to use Nextcloud.pdf')) {
+			/**
+			 * @psalm-suppress UndefinedClass, InvalidArgument
+			 */
 			$this->eventDispatcher->dispatch(LoadViewer::class, new LoadViewer());
 			$hasInitialState = true;
 		}