diff --git a/lib/Service/ObjectService.php b/lib/Service/ObjectService.php
index bc626fb2..e0befbbf 100644
--- a/lib/Service/ObjectService.php
+++ b/lib/Service/ObjectService.php
@@ -12,6 +12,7 @@
 use OCP\App\IAppManager;
 use OCP\AppFramework\Db\DoesNotExistException;
 use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+use OCP\IURLGenerator;
 use Psr\Container\ContainerExceptionInterface;
 use Psr\Container\NotFoundExceptionInterface;
 use Symfony\Component\Uid\Uuid;
@@ -34,6 +35,8 @@ class ObjectService
 	/** @var string $appName The name of the app */
 	private string $appName;
 
+	private ValidationService $validationService;
+
 	/**
 	 * Constructor for ObjectService.
 	 *
@@ -59,8 +62,11 @@ public function __construct(
 		private ContainerInterface $container,
 		private readonly IAppManager $appManager,
 		private readonly IAppConfig $config,
+		IURLGenerator $urlGenerator,
 	) {
 		$this->appName = 'opencatalogi';
+
+		$this->validationService = new ValidationService(objectService: $this, urlGenerator: $urlGenerator);
 	}
 
 	/**