diff --git a/apps/dav/lib/Connector/Sabre/DavAclPlugin.php b/apps/dav/lib/Connector/Sabre/DavAclPlugin.php
index 7fa94d7b90398..f574cec00c6b6 100644
--- a/apps/dav/lib/Connector/Sabre/DavAclPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/DavAclPlugin.php
@@ -75,6 +75,11 @@ public function checkPrivileges($uri, $privileges, $recursion = self::R_PARENT,
 	}
 
 	public function propFind(PropFind $propFind, INode $node) {
+		if ($node instanceof Node) {
+			// files don't use dav acls
+			return;
+		}
+
 		// If the node is neither readable nor writable then fail unless its of
 		// the standard user-principal
 		if (!($node instanceof User)) {