diff --git a/htdocs/contrat/card.php b/htdocs/contrat/card.php
index 79897cdc16d..12f53b49390 100644
--- a/htdocs/contrat/card.php
+++ b/htdocs/contrat/card.php
@@ -2046,11 +2046,12 @@ if ($action == 'create') {
 			$dateSelector = 1;
 
 			print "\n";
-			print '	<form name="addproduct" id="addproduct" action="'.$_SERVER["PHP_SELF"].'?id='.$object->id.(($action != 'editline') ? '#add' : '#line_'.GETPOST('lineid', 'int')).'" method="POST">
+			print '	<form name="addproduct" id="addproduct" action="'.$_SERVER["PHP_SELF"].'?id='.$object->id.(($action != 'editline') ? '' : '#line_'.GETPOST('lineid', 'int')).'" method="POST">
 			<input type="hidden" name="token" value="'.newToken().'">
 			<input type="hidden" name="action" value="'.(($action != 'editline') ? 'addline' : 'updateline').'">
 			<input type="hidden" name="mode" value="">
 			<input type="hidden" name="id" value="'.$object->id.'">
+			<input type="hidden" name="page_y" value="">
 			';
 
 			print '<div class="div-table-responsive-no-min">';