diff --git a/htdocs/core/modules/livraison/modules_livraison.php b/htdocs/core/modules/livraison/modules_livraison.php
index e956d455640..bb4992fb3e2 100644
--- a/htdocs/core/modules/livraison/modules_livraison.php
+++ b/htdocs/core/modules/livraison/modules_livraison.php
@@ -230,7 +230,7 @@ function delivery_order_pdf_create($db, $object, $modele, $outputlangs='')
 			$interface=new Interfaces($db);
 			$result=$interface->run_triggers('DELIVERY_BUILDDOC',$object,$user,$langs,$conf);
 			if ($result < 0) {
-				$error++; $this->errors=$interface->errors;
+				$error++; $obj->errors=$interface->errors;
 			}
 			// Fin appel triggers
 
@@ -251,4 +251,4 @@ function delivery_order_pdf_create($db, $object, $modele, $outputlangs='')
 	}
 }
 
-?>
\ No newline at end of file
+?>