diff --git a/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php b/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php
index dd689ef3b69..1397d46eac9 100644
--- a/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php
@@ -392,7 +392,7 @@ class pdf_eratosthene extends ModelePDFCommandes
 
 
 				$tab_top = 90 + $top_shift;
-				$tab_top_newpage = (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD) ? 42 + $top_shift : 10);
+				$tab_top_newpage = (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD') ? 42 + $top_shift : 10);
 
 				$tab_height = $this->page_hauteur - $tab_top - $heightforfooter - $heightforfreetext;
 
@@ -466,7 +466,7 @@ class pdf_eratosthene extends ModelePDFCommandes
 							if (!empty($tplidx)) {
 								$pdf->useTemplate($tplidx);
 							}
-							if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) {
+							if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) {
 								$this->_pagehead($pdf, $object, 0, $outputlangs);
 							}
 							// $this->_pagefoot($pdf,$object,$outputlangs,1);
@@ -524,7 +524,7 @@ class pdf_eratosthene extends ModelePDFCommandes
 						if (!empty($tplidx)) {
 							$pdf->useTemplate($tplidx);
 						}
-						if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) {
+						if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) {
 							$this->_pagehead($pdf, $object, 0, $outputlangs);
 						}
 						$height_note = $posyafter - $tab_top_newpage;
@@ -546,7 +546,7 @@ class pdf_eratosthene extends ModelePDFCommandes
 							if (!empty($tplidx)) {
 								$pdf->useTemplate($tplidx);
 							}
-							if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) {
+							if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) {
 								$this->_pagehead($pdf, $object, 0, $outputlangs);
 							}
 
@@ -642,7 +642,7 @@ class pdf_eratosthene extends ModelePDFCommandes
 									if (!empty($tplidx)) {
 										$pdf->useTemplate($tplidx);
 									}
-									//if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) $this->_pagehead($pdf, $object, 0, $outputlangs);
+									//if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) $this->_pagehead($pdf, $object, 0, $outputlangs);
 									$pdf->setPage($pageposafter + 1);
 								}
 							} else {
@@ -832,7 +832,7 @@ class pdf_eratosthene extends ModelePDFCommandes
 						$pagenb++;
 						$pdf->setPage($pagenb);
 						$pdf->setPageOrientation('', 1, 0); // The only function to edit the bottom margin of current page to set it.
-						if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) {
+						if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) {
 							$this->_pagehead($pdf, $object, 0, $outputlangs);
 						}
 						if (!empty($tplidx)) {
@@ -852,7 +852,7 @@ class pdf_eratosthene extends ModelePDFCommandes
 							$pdf->useTemplate($tplidx);
 						}
 						$pagenb++;
-						if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) {
+						if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) {
 							$this->_pagehead($pdf, $object, 0, $outputlangs);
 						}
 					}