diff --git a/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php b/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
index 6a8cb3f0f59a1..ccb6d91ffef33 100644
--- a/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
@@ -430,7 +430,7 @@ public function findNodesByFileIds(Node $rootNode, array $fileIds): array {
 
 		$results = [];
 		foreach ($fileIds as $fileId) {
-			$entry = $folder->getFirstNodeById($fileId);
+			$entry = $folder->getFirstNodeById((int)$fileId);
 			if ($entry) {
 				$results[] = $this->wrapNode($entry);
 			}