diff --git a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
index 5a206410aa7..e61d438c8a5 100644
--- a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
@@ -2593,7 +2593,7 @@ class pdf_sponge extends ModelePDFFactures
 			),
 			'border-left' => true, // add left line separator
 		);
-		if (!empty($conf->global->PRODUCT_USE_UNITS)) {
+		if (getDolGlobalInt('PRODUCT_USE_UNITS')) {
 			$this->cols['unit']['status'] = true;
 		}