diff --git a/Neos.ContentRepositoryRegistry/Classes/Factory/ProjectionCatchUpTrigger/SubprocessProjectionCatchUpTrigger.php b/Neos.ContentRepositoryRegistry/Classes/Factory/ProjectionCatchUpTrigger/SubprocessProjectionCatchUpTrigger.php
index 078e2c83685..01c7c8fca47 100644
--- a/Neos.ContentRepositoryRegistry/Classes/Factory/ProjectionCatchUpTrigger/SubprocessProjectionCatchUpTrigger.php
+++ b/Neos.ContentRepositoryRegistry/Classes/Factory/ProjectionCatchUpTrigger/SubprocessProjectionCatchUpTrigger.php
@@ -38,7 +38,7 @@ public function triggerCatchUp(Projections $projections): void
     {
         // modelled after https://github.com/neos/Neos.EventSourcing/blob/master/Classes/EventPublisher/JobQueueEventPublisher.php#L103
         // and https://github.com/Flowpack/jobqueue-common/blob/master/Classes/Queue/FakeQueue.php
-        $queuedProjections = array_map(fn($projection) => $this->startCatchUpWithQueueing($projection), iterator_to_array($projections->getIterator()));
+        $queuedProjections = array_map($this->startCatchUpWithQueueing(...), iterator_to_array($projections));
         $queuedProjections = array_filter($queuedProjections);
 
         $attempts = 0;