diff --git a/htdocs/core/modules/supplier_order/doc/pdf_cornas.modules.php b/htdocs/core/modules/supplier_order/doc/pdf_cornas.modules.php
index 08327fefc67..72ccdc24996 100644
--- a/htdocs/core/modules/supplier_order/doc/pdf_cornas.modules.php
+++ b/htdocs/core/modules/supplier_order/doc/pdf_cornas.modules.php
@@ -1262,7 +1262,7 @@ class pdf_cornas extends ModelePDFSuppliersOrders
 				if (!empty($conf->mycompany->multidir_output[$object->entity])) {
 					$logodir = $conf->mycompany->multidir_output[$object->entity];
 				}
-				if (empty($conf->global->MAIN_PDF_USE_LARGE_LOGO)) {
+				if (!getDolGlobalInt('MAIN_PDF_USE_LARGE_LOGO')) {
 					$logo = $logodir.'/logos/thumbs/'.$this->emetteur->logo_small;
 				} else {
 					$logo = $logodir.'/logos/'.$this->emetteur->logo;