diff --git a/htdocs/admin/supplier_order.php b/htdocs/admin/supplier_order.php
index 55c14a22e4d..c714e469929 100644
--- a/htdocs/admin/supplier_order.php
+++ b/htdocs/admin/supplier_order.php
@@ -54,6 +54,8 @@ $specimenthirdparty->initAsSpecimen();
  * Actions
  */
 
+include DOL_DOCUMENT_ROOT.'/core/actions_setmoduleoptions.inc.php';
+
 if ($action == 'updateMask')
 {
     $maskconstorder = GETPOST('maskconstorder', 'alpha');
diff --git a/htdocs/core/actions_setmoduleoptions.inc.php b/htdocs/core/actions_setmoduleoptions.inc.php
index e0232ee5c87..ce4a5af49d5 100644
--- a/htdocs/core/actions_setmoduleoptions.inc.php
+++ b/htdocs/core/actions_setmoduleoptions.inc.php
@@ -64,6 +64,7 @@ if ($action == 'setModuleOptions')
     {
         foreach($_POST as $key => $val)
         {
+        	$reg = array();
             if (preg_match('/^param(\d*)$/', $key, $reg))    // Works for POST['param'], POST['param1'], POST['param2'], ...
             {
                 $param=GETPOST("param".$reg[1], 'alpha');