diff --git a/apps/files/lib/Command/RepairTree.php b/apps/files/lib/Command/RepairTree.php
index 1e4607dbe6..144ce5654e 100644
--- a/apps/files/lib/Command/RepairTree.php
+++ b/apps/files/lib/Command/RepairTree.php
@@ -69,10 +69,10 @@ class RepairTree extends Command {
 			$output->writeln("Path of file ${row['fileid']} is ${row['path']} but should be ${row['parent_path']}/${row['name']} based on it's parent", OutputInterface::VERBOSITY_VERBOSE);
 
 			if ($fix) {
-				$fileId = $this->getFileId($row['parent_storage'], $row['parent_path'] . '/' . $row['name']);
+				$fileId = $this->getFileId((int)$row['parent_storage'], $row['parent_path'] . '/' . $row['name']);
 				if ($fileId > 0) {
 					$output->writeln("Cache entry has already be recreated with id $fileId, deleting instead");
-					$this->deleteById($row['fileid']);
+					$this->deleteById((int)$row['fileid']);
 				} else {
 					$query->setParameters([
 						'fileid' => $row['fileid'],