diff --git a/inc/HTTP/WebDAV/Server.php b/inc/HTTP/WebDAV/Server.php
index d9800426cbe..5c1844af57d 100755
--- a/inc/HTTP/WebDAV/Server.php
+++ b/inc/HTTP/WebDAV/Server.php
@@ -19,9 +19,9 @@
 //
 // $Id: Server.php,v 1.46 2006/03/03 21:43:09 hholzgra Exp $
 //
-require_once "HTTP/WebDAV/Tools/_parse_propfind.php";
-require_once "HTTP/WebDAV/Tools/_parse_proppatch.php";
-require_once "HTTP/WebDAV/Tools/_parse_lockinfo.php";
+oc_require_once("HTTP/WebDAV/Tools/_parse_propfind.php");
+oc_require_once("HTTP/WebDAV/Tools/_parse_proppatch.php");
+oc_require_once("HTTP/WebDAV/Tools/_parse_lockinfo.php");
 
 
 
diff --git a/inc/HTTP/WebDAV/Server/Filesystem.php b/inc/HTTP/WebDAV/Server/Filesystem.php
index 81dd64983ff..cecde206f60 100755
--- a/inc/HTTP/WebDAV/Server/Filesystem.php
+++ b/inc/HTTP/WebDAV/Server/Filesystem.php
@@ -1,8 +1,6 @@
 <?php
-    
-    require_once "lib_base.php";
-    require_once "HTTP/WebDAV/Server.php";
-    require_once "System.php";
+    oc_require_once("HTTP/WebDAV/Server.php");
+    oc_require_once("System.php");
     
     /**
      * Filesystem access using WebDAV