diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index e36b7092848..b34ea5a2b2e 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -2885,7 +2885,9 @@ class Form
      *	@return	int							Nb of loaded lines, 0 if already loaded, <0 if KO
      */
     function load_cache_vatrates($country_code)
-    {
+    {
+    	global $langs;
+    	
     	if (count($this->cache_vatrates)) return 0;    // Cache deja charge
 
     	$sql  = "SELECT DISTINCT t.taux, t.recuperableonly";