diff --git a/Classes/Domain/Index/Queue/GarbageRemover/AbstractStrategy.php b/Classes/Domain/Index/Queue/GarbageRemover/AbstractStrategy.php
index a11ee0b307..311c2544a6 100644
--- a/Classes/Domain/Index/Queue/GarbageRemover/AbstractStrategy.php
+++ b/Classes/Domain/Index/Queue/GarbageRemover/AbstractStrategy.php
@@ -111,6 +111,10 @@ protected function deleteIndexDocuments(string $table, int $uid, int $language =
             try {
                 $site = $indexQueueItem->getSite();
             } catch (InvalidArgumentException $e) {
+                $site = null;
+            }
+
+            if ($site === null) {
                 $this->queue->deleteItem($indexQueueItem->getType(), $indexQueueItem->getIndexQueueUid());
                 continue;
             }