diff --git a/mod/lams/testws.php b/mod/lams/testws.php
index f305557f767..95125c1bc17 100644
--- a/mod/lams/testws.php
+++ b/mod/lams/testws.php
@@ -1,8 +1,8 @@
 Testing web service...
 <BR>
 <?php
-  require("../../config.php");
-  require($CFG->dirroot.'/lib/nusoap/nusoap.php');
+  require_once("../../config.php");
+  require_once($CFG->dirroot.'/lib/nusoap/nusoap.php');
 
     $wsdl = "http://137.111.229.11:8080/lams/services/UserManagementService?wsdl";
     $s = new soapclient($wsdl,true,false,false,false,false,2,3);