diff --git a/composer.json b/composer.json
index c1f4506c6..9794196db 100644
--- a/composer.json
+++ b/composer.json
@@ -492,6 +492,7 @@
 
 		"rmariuzzo/jquery-checkboxes": "1.0.7",
 
+		"sabre/dav": "1.8.10",
 		"scottjehl/respond": "1.4.2",
 
 		"tapmodo/jcrop": "2.0.4",
diff --git a/webdav/lvplan.php b/webdav/lvplan.php
index b943e03f5..684ebb1c3 100644
--- a/webdav/lvplan.php
+++ b/webdav/lvplan.php
@@ -1,7 +1,7 @@
 <?php
 
 // Files we need
-require_once '../include/sabredav/lib/Sabre/autoload.php';
+require_once dirname(__DIR__).'/vendor/autoload.php';
 require_once 'auth.class.php';
 require_once 'Caldav_Backend.php';
 require_once('Principal.php');
@@ -49,4 +49,3 @@ $server->addPlugin($browser);
 
 // And off we go!
 $server->exec();
-