diff --git a/lib/private/Files/ObjectStore/S3ObjectTrait.php b/lib/private/Files/ObjectStore/S3ObjectTrait.php
index bb71306c17d0f..121ccff96b7e0 100644
--- a/lib/private/Files/ObjectStore/S3ObjectTrait.php
+++ b/lib/private/Files/ObjectStore/S3ObjectTrait.php
@@ -96,9 +96,10 @@ public function writeObject($urn, $stream, string $mimetype = null) {
 			'bucket' => $this->bucket,
 			'key' => $urn,
 			'part_size' => $this->uploadPartSize,
+			'concurrency' => $this->config->getSystemValue('objectstore.arguments.concurrency', 5),
 			'params' => [
 				'ContentType' => $mimetype
-			]
+			],
 		]);
 
 		try {