diff --git a/htdocs/core/tpl/objectline_title.tpl.php b/htdocs/core/tpl/objectline_title.tpl.php
index fff2656659b..c97a08012e7 100644
--- a/htdocs/core/tpl/objectline_title.tpl.php
+++ b/htdocs/core/tpl/objectline_title.tpl.php
@@ -104,7 +104,10 @@ if (in_array($object->element, array('propal', 'commande', 'facture', 'supplier_
 	//print '<script>$(document).ready(function() { $(".clickvatforalllines").click(function() { jQuery(".classvatforalllines").toggle(); }); });</script>';
 	if (GETPOST('mode', 'aZ09') == 'vatforalllines') {
 		print '<div class="classvatforalllines inline-block nowraponall">';
-		print $form->load_tva('vatforalllines', '', $mysoc, $object->thirdparty, 0, 0, '', false, 1);
+		$societe_vendeuse = strpos($object->element, 'supplier') === false ? $mysoc : $object->thirdparty;
+		$societe_acheteuse = strpos($object->element, 'supplier') === false ? $object->thirdparty : $mysoc;
+		$vat_mode = strpos($object->element, 'supplier') === false ? 1 : 2;
+		print $form->load_tva('vatforalllines', '', $societe_vendeuse, $societe_acheteuse, 0, 0, '', false, 1, $vat_mode);
 		print '<input class="inline-block button smallpaddingimp" type="submit" name="submitforalllines" value="'.$langs->trans("Update").'">';
 		print '</div>';
 	}