diff --git a/htdocs/resource/class/dolresource.class.php b/htdocs/resource/class/dolresource.class.php
index 4af42ea8ff2..bf9acde2d50 100644
--- a/htdocs/resource/class/dolresource.class.php
+++ b/htdocs/resource/class/dolresource.class.php
@@ -948,7 +948,7 @@ class Dolresource extends CommonObject
      */
     public function getNomUrl($withpicto = 0, $option = '', $get_params = '', $notooltip = 0, $morecss = '', $save_lastsearch_value = -1)
     {
-        global $langs;
+        global $conf, $langs;
 
         $result = '';
         $label = '<u>'.$langs->trans("ShowResource").'</u>';