diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 7b1a795f7..9b02700ad 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -35,6 +35,7 @@ public function boot(IBootContext $context): void {
 	}
 
 	public function register(IRegistrationContext $context): void {
+		include_once __DIR__ . '/../../vendor/autoload.php';
 		$context->registerEventListener(LoadSidebar::class, LoadSidebarListener::class);
 		$context->registerEventListener(BeforeNodeDeletedEvent::class, BeforeNodeDeletedListener::class);
 		$context->registerEventListener(SignedEvent::class, SignedListener::class);