diff --git a/htdocs/core/modules/supplier_proposal/doc/pdf_aurore.modules.php b/htdocs/core/modules/supplier_proposal/doc/pdf_aurore.modules.php
index fe439ea0790..6cb651b49fd 100644
--- a/htdocs/core/modules/supplier_proposal/doc/pdf_aurore.modules.php
+++ b/htdocs/core/modules/supplier_proposal/doc/pdf_aurore.modules.php
@@ -251,7 +251,7 @@ class pdf_aurore extends ModelePDFSupplierProposal
 
 				$realpath = '';
 				foreach ($objphoto->liste_photos($dir, 1) as $key => $obj) {
-					if (empty($conf->global->CAT_HIGH_QUALITY_IMAGES)) {		// If CAT_HIGH_QUALITY_IMAGES not defined, we use thumb if defined and then original photo
+					if (!getDolGlobalInt('CAT_HIGH_QUALITY_IMAGES')) {		// If CAT_HIGH_QUALITY_IMAGES not defined, we use thumb if defined and then original photo
 						if ($obj['photo_vignette']) {
 							$filename = $obj['photo_vignette'];
 						} else {