diff --git a/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php b/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php
index 66c07355b29..e74263304e3 100644
--- a/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php
+++ b/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php
@@ -68,7 +68,7 @@ class mod_commande_fournisseur_muguet extends ModeleNumRefSuppliersOrders
      */
     function canBeActivated()
     {
-    	global $conf,$langs;
+    	global $conf,$langs,$db;
 
         $coyymm=''; $max='';