diff --git a/lib/private/FilesMetadata/FilesMetadataManager.php b/lib/private/FilesMetadata/FilesMetadataManager.php
index 013c85af604b6..6f7faf5d61c23 100644
--- a/lib/private/FilesMetadata/FilesMetadataManager.php
+++ b/lib/private/FilesMetadata/FilesMetadataManager.php
@@ -122,7 +122,7 @@ public function refreshMetadata(
 				return $this->refreshMetadata($node, self::PROCESS_BACKGROUND);
 			}
 
-			$this->jobList->add(UpdateSingleMetadata::class, [$node->getOwner()->getUID(), $node->getId()]);
+			$this->jobList->add(UpdateSingleMetadata::class, [$node->getOwner()?->getUID(), $node->getId()]);
 		}
 
 		return $metadata;