diff --git a/apps/files_external/lib/Lib/Storage/AmazonS3.php b/apps/files_external/lib/Lib/Storage/AmazonS3.php
index 6d30031211..8a272b2ffc 100644
--- a/apps/files_external/lib/Lib/Storage/AmazonS3.php
+++ b/apps/files_external/lib/Lib/Storage/AmazonS3.php
@@ -50,6 +50,10 @@ class AmazonS3 extends \OC\Files\Storage\Common {
 	use S3ConnectionTrait;
 	use S3ObjectTrait;
 
+	public function needsPartFile() {
+		return false;
+	}
+
 	/**
 	 * @var int in seconds
 	 */