diff --git a/app/Http/Controllers/System/SyncOrthancController.php b/app/Http/Controllers/System/SyncOrthancController.php
index c80d012..7855250 100644
--- a/app/Http/Controllers/System/SyncOrthancController.php
+++ b/app/Http/Controllers/System/SyncOrthancController.php
@@ -11,7 +11,7 @@ class SyncOrthancController extends Controller
     public function __invoke()
     {
         foreach (DicomServer::active()->get() as $pacs) {
-            new StudiesSync($pacs)->execute();
+            (new StudiesSync($pacs))->execute();
         }
 
         return redirect()->route('staff.worklist.index');