diff --git a/src/infrastructure/daemon/workers/PhabricatorWorker.php b/src/infrastructure/daemon/workers/PhabricatorWorker.php
--- a/src/infrastructure/daemon/workers/PhabricatorWorker.php
+++ b/src/infrastructure/daemon/workers/PhabricatorWorker.php
@@ -199,7 +199,8 @@
     }
 
     $tasks = id(new PhabricatorWorkerArchiveTaskQuery())
-      ->withIDs($task_ids);
+      ->withIDs($task_ids)
+      ->execute();
 
     foreach ($tasks as $task) {
       if ($task->getResult() != PhabricatorWorkerArchiveTask::RESULT_SUCCESS) {