diff --git a/lib/private/Files/Storage/DAV.php b/lib/private/Files/Storage/DAV.php
index ac9b7a7285593..3301acafcb16e 100644
--- a/lib/private/Files/Storage/DAV.php
+++ b/lib/private/Files/Storage/DAV.php
@@ -724,7 +724,7 @@ public function getPermissions($path) {
 	/** {@inheritdoc} */
 	public function getETag($path) {
 		$meta = $this->getMetaData($path);
-		return $meta ? $meta['etag'] : null;
+		return $meta ? $meta['etag'] : parent::getETag($path);
 	}
 
 	/**