diff --git a/htdocs/core/modules/mrp/doc/pdf_vinci.modules.php b/htdocs/core/modules/mrp/doc/pdf_vinci.modules.php
index 212397b4a3c..c5dc9dd8b19 100644
--- a/htdocs/core/modules/mrp/doc/pdf_vinci.modules.php
+++ b/htdocs/core/modules/mrp/doc/pdf_vinci.modules.php
@@ -306,7 +306,7 @@ class pdf_vinci extends ModelePDFMo
 				$pdf->SetTextColor(0, 0, 0);
 
 				$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;
 
@@ -350,7 +350,7 @@ class pdf_vinci extends ModelePDFMo
 							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);
@@ -408,7 +408,7 @@ class pdf_vinci extends ModelePDFMo
 						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 - $tab_top_newpage;
@@ -430,7 +430,7 @@ class pdf_vinci extends ModelePDFMo
 							if (!empty($tplidx)) {
 								$pdf->useTemplate($tplidx);
 							}
-							if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) {
+							if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) {
 								$this->_pagehead($pdf, $object, 0, $outputlangs);
 							}
 
@@ -486,7 +486,7 @@ class pdf_vinci extends ModelePDFMo
 						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);
 						}
 						$pdf->setPage($pageposbefore + 1);
@@ -532,7 +532,7 @@ class pdf_vinci extends ModelePDFMo
 								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 {
 								// We found a page break
@@ -584,7 +584,7 @@ class pdf_vinci extends ModelePDFMo
 								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 {
 								// We found a page break
diff --git a/htdocs/core/modules/product/doc/pdf_standard.modules.php b/htdocs/core/modules/product/doc/pdf_standard.modules.php
index f7847543701..89df34f8f73 100644
--- a/htdocs/core/modules/product/doc/pdf_standard.modules.php
+++ b/htdocs/core/modules/product/doc/pdf_standard.modules.php
@@ -233,7 +233,7 @@ class pdf_standard extends ModelePDFProduct
 
 
 				$tab_top = 42;
-				$tab_top_newpage = (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD) ? 42 : 10);
+				$tab_top_newpage = (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD') ? 42 : 10);
 
 				$tab_height = $this->page_hauteur - $tab_top - $heightforfooter - $heightforfreetext;
 
@@ -352,7 +352,7 @@ class pdf_standard extends ModelePDFProduct
 							{
 								$pdf->AddPage('','',true);
 								if (!empty($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);
 							}
 						}
@@ -484,7 +484,7 @@ class pdf_standard extends ModelePDFProduct
 						$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)) $this->_pagehead($pdf, $object, 0, $outputlangs);
+						if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) $this->_pagehead($pdf, $object, 0, $outputlangs);
 					}
 					if (isset($object->lines[$i+1]->pagebreak) && $object->lines[$i+1]->pagebreak)
 					{
@@ -501,7 +501,7 @@ class pdf_standard extends ModelePDFProduct
 						$pdf->AddPage();
 						if (!empty($tplidx)) $pdf->useTemplate($tplidx);
 						$pagenb++;
-						if (empty($conf->global->MAIN_PDF_DONOTREPEAT_HEAD)) $this->_pagehead($pdf, $object, 0, $outputlangs);
+						if (!getDolGlobalInt('MAIN_PDF_DONOTREPEAT_HEAD')) $this->_pagehead($pdf, $object, 0, $outputlangs);
 					}
 				}