diff --git a/controller/sharecontroller.php b/controller/sharecontroller.php
index 571c7ffb..d7184baf 100644
--- a/controller/sharecontroller.php
+++ b/controller/sharecontroller.php
@@ -39,7 +39,7 @@ class ShareController extends ApiController {
 
 	public function __construct($AppName,
 								IRequest $request,
-								IUser $UserId,
+								$UserId,
 								IGroupManager $groupManager,
 								IUserManager $userManager,
 								ActivityService $activityService,
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 591da47b..ce54227d 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -85,6 +85,7 @@ class Application extends App {
 		$container->registerAlias('VaultController', VaultController::class);
 		$container->registerAlias('CredentialService', CredentialService::class);
 		$container->registerAlias('NotificationService', NotificationService::class);
+		$container->registerAlias('ActivityService', ActivityService::class);
 		$container->registerAlias('VaultService', VaultService::class);
 		$container->registerAlias('Utils', Utils::class);
 	}