diff --git a/htdocs/core/modules/commande/modules_commande.php b/htdocs/core/modules/commande/modules_commande.php
index aa52d55bad3..5ddcc38e8d9 100644
--- a/htdocs/core/modules/commande/modules_commande.php
+++ b/htdocs/core/modules/commande/modules_commande.php
@@ -237,7 +237,7 @@ function commande_pdf_create($db, $object, $modele, $outputlangs, $hidedetails=0
 			include_once DOL_DOCUMENT_ROOT . '/core/class/interfaces.class.php';
 			$interface=new Interfaces($db);
 			$result=$interface->run_triggers('ORDER_BUILDDOC',$object,$user,$langs,$conf);
-			if ($result < 0) { $error++; $this->errors=$interface->errors; }
+			if ($result < 0) { $error++; $obj->errors=$interface->errors; }
 			// Fin appel triggers
 
 			return 1;