diff --git a/lib/private/Archive/ZIP.php b/lib/private/Archive/ZIP.php
index 96894bac6e..2840bac70e 100644
--- a/lib/private/Archive/ZIP.php
+++ b/lib/private/Archive/ZIP.php
@@ -48,7 +48,7 @@ class ZIP extends Archive {
 	public function __construct($source) {
 		$this->path = $source;
 		$this->zip = new \ZipArchive();
-		if ($this->zip->open($source, \ZipArchive::CREATE)) {
+		if ($this->zip->open($source, \ZipArchive::OVERWRITE)) {
 		} else {
 			\OCP\Util::writeLog('files_archive', 'Error while opening archive '.$source, ILogger::WARN);
 		}