diff --git a/htdocs/core/modules/expedition/modules_expedition.php b/htdocs/core/modules/expedition/modules_expedition.php
index d205f662974160e43e691632fa36f99e32430929..9a56b85582d6464a297952abd95d928cebe37f61 100644
--- a/htdocs/core/modules/expedition/modules_expedition.php
+++ b/htdocs/core/modules/expedition/modules_expedition.php
@@ -227,7 +227,7 @@ function expedition_pdf_create($db, $object, $modele, $outputlangs)
 			$interface=new Interfaces($db);
 			$result=$interface->run_triggers('SHIPPING_BUILDDOC',$object,$user,$langs,$conf);
 			if ($result < 0) {
-				$error++; $this->errors=$interface->errors;
+				$error++; $obj->errors=$interface->errors;
 			}
 			// End calls triggers
 
@@ -254,4 +254,4 @@ function expedition_pdf_create($db, $object, $modele, $outputlangs)
 		return 0;
     }
 }
-?>
\ No newline at end of file
+?>