diff --git a/htdocs/core/tpl/objectline_title.tpl.php b/htdocs/core/tpl/objectline_title.tpl.php
index 6d8238cd885..7fe63613ea1 100644
--- a/htdocs/core/tpl/objectline_title.tpl.php
+++ b/htdocs/core/tpl/objectline_title.tpl.php
@@ -49,19 +49,19 @@ print '<tr class="liste_titre nodrag nodrop">';
 
 // Adds a line numbering column
 if (!empty($conf->global->MAIN_VIEW_LINE_NUMBER)) {
-	print '<td class="linecolnum center">&nbsp;</td>';
+	print '<th class="linecolnum center">&nbsp;</th>';
 }
 
 // Description
-print '<td class="linecoldescription">'.$langs->trans('Description').'</td>';
+print '<th class="linecoldescription">'.$langs->trans('Description').'</th>';
 
 // Supplier ref
 if ($this->element == 'supplier_proposal' || $this->element == 'order_supplier' || $this->element == 'invoice_supplier' || $this->element == 'invoice_supplier_rec') {
-	print '<td class="linerefsupplier maxwidth125"><span id="title_fourn_ref">'.$langs->trans("SupplierRef").'</span></td>';
+	print '<th class="linerefsupplier maxwidth125"><span id="title_fourn_ref">'.$langs->trans("SupplierRef").'</span></th>';
 }
 
 // VAT
-print '<td class="linecolvat right nowraponall">';
+print '<th class="linecolvat right nowraponall">';
 if (!empty($conf->global->FACTURE_LOCAL_TAX1_OPTION) || !empty($conf->global->FACTURE_LOCAL_TAX2_OPTION)) {
 	print $langs->trans('Taxes');
 } else {
@@ -82,30 +82,30 @@ if (in_array($object->element, array('propal', 'commande', 'facture', 'supplier_
 		print '</div>';
 	}
 }
-print '</td>';
+print '</th>';
 
 // Price HT
-print '<td class="linecoluht right nowraponall">'.$langs->trans('PriceUHT').'</td>';
+print '<th class="linecoluht right nowraponall">'.$langs->trans('PriceUHT').'</th>';
 
 // Multicurrency
 if (isModEnabled("multicurrency") && $this->multicurrency_code != $conf->currency) {
-	print '<td class="linecoluht_currency right" style="width: 80px">'.$langs->trans('PriceUHTCurrency', $this->multicurrency_code).'</td>';
+	print '<th class="linecoluht_currency right" style="width: 80px">'.$langs->trans('PriceUHTCurrency', $this->multicurrency_code).'</th>';
 }
 
 if ($inputalsopricewithtax) {
-	print '<td class="right nowraponall">'.$langs->trans('PriceUTTC').'</td>';
+	print '<th class="right nowraponall">'.$langs->trans('PriceUTTC').'</th>';
 }
 
 // Qty
-print '<td class="linecolqty right">'.$langs->trans('Qty').'</td>';
+print '<th class="linecolqty right">'.$langs->trans('Qty').'</th>';
 
 // Unit
 if (!empty($conf->global->PRODUCT_USE_UNITS)) {
-	print '<td class="linecoluseunit left">'.$langs->trans('Unit').'</td>';
+	print '<th class="linecoluseunit left">'.$langs->trans('Unit').'</th>';
 }
 
 // Reduction short
-print '<td class="linecoldiscount right nowraponall">';
+print '<th class="linecoldiscount right nowraponall">';
 print $langs->trans('ReductionShort');
 
 if (in_array($object->element, array('propal', 'commande', 'facture')) && $object->status == $object::STATUS_DRAFT) {
@@ -122,59 +122,59 @@ if (in_array($object->element, array('propal', 'commande', 'facture')) && $objec
 		print '</div>';
 	}
 }
-print '</td>';
+print '</th>';
 
 // Fields for situation invoice
 if (isset($this->situation_cycle_ref) && $this->situation_cycle_ref) {
-	print '<td class="linecolcycleref right">'.$langs->trans('Progress').'</td>';
-	print '<td class="linecolcycleref2 right">'.$form->textwithpicto($langs->trans('TotalHT100Short'), $langs->trans('UnitPriceXQtyLessDiscount')).'</td>';
+	print '<th class="linecolcycleref right">'.$langs->trans('Progress').'</th>';
+	print '<th class="linecolcycleref2 right">'.$form->textwithpicto($langs->trans('TotalHT100Short'), $langs->trans('UnitPriceXQtyLessDiscount')).'</th>';
 }
 
 // Purchase price
 if ($usemargins && isModEnabled('margin') && empty($user->socid)) {
 	if (!empty($user->rights->margins->creer)) {
 		if ($conf->global->MARGIN_TYPE == "1") {
-			print '<td class="linecolmargin1 margininfos right" style="width: 80px">'.$langs->trans('BuyingPrice').'</td>';
+			print '<th class="linecolmargin1 margininfos right" style="width: 80px">'.$langs->trans('BuyingPrice').'</th>';
 		} else {
-			print '<td class="linecolmargin1 margininfos right" style="width: 80px">'.$langs->trans('CostPrice').'</td>';
+			print '<th class="linecolmargin1 margininfos right" style="width: 80px">'.$langs->trans('CostPrice').'</th>';
 		}
 	}
 
 	if (!empty($conf->global->DISPLAY_MARGIN_RATES) && $user->rights->margins->liretous) {
-		print '<td class="linecolmargin2 margininfos right" style="width: 50px">'.$langs->trans('MarginRate').'</td>';
+		print '<th class="linecolmargin2 margininfos right" style="width: 50px">'.$langs->trans('MarginRate').'</th>';
 	}
 	if (!empty($conf->global->DISPLAY_MARK_RATES) && $user->rights->margins->liretous) {
-		print '<td class="linecolmargin2 margininfos right" style="width: 50px">'.$langs->trans('MarkRate').'</td>';
+		print '<th class="linecolmargin2 margininfos right" style="width: 50px">'.$langs->trans('MarkRate').'</th>';
 	}
 }
 
 // Total HT
-print '<td class="linecolht right">'.$langs->trans('TotalHTShort').'</td>';
+print '<th class="linecolht right">'.$langs->trans('TotalHTShort').'</th>';
 
 // Multicurrency
 if (isModEnabled("multicurrency") && $this->multicurrency_code != $conf->currency) {
-	print '<td class="linecoltotalht_currency right">'.$langs->trans('TotalHTShortCurrency', $this->multicurrency_code).'</td>';
+	print '<th class="linecoltotalht_currency right">'.$langs->trans('TotalHTShortCurrency', $this->multicurrency_code).'</th>';
 }
 
 if ($outputalsopricetotalwithtax) {
-	print '<td class="right" style="width: 80px">'.$langs->trans('TotalTTCShort').'</td>';
+	print '<th class="right" style="width: 80px">'.$langs->trans('TotalTTCShort').'</th>';
 }
 
 if (isModEnabled('asset') && $object->element == 'invoice_supplier') {
-	print '<td class="linecolasset"></td>';
+	print '<th class="linecolasset"></th>';
 }
 
-print '<td class="linecoledit"></td>'; // No width to allow autodim
+print '<th class="linecoledit"></th>'; // No width to allow autodim
 
-print '<td class="linecoldelete" style="width: 10px"></td>';
+print '<th class="linecoldelete" style="width: 10px"></th>';
 
-print '<td class="linecolmove" style="width: 10px"></td>';
+print '<th class="linecolmove" style="width: 10px"></th>';
 
 if ($action == 'selectlines') {
-	print '<td class="linecolcheckall center">';
+	print '<th class="linecolcheckall center">';
 	print '<input type="checkbox" class="linecheckboxtoggle" />';
 	print '<script>$(document).ready(function() {$(".linecheckboxtoggle").click(function() {var checkBoxes = $(".linecheckbox");checkBoxes.prop("checked", this.checked);})});</script>';
-	print '</td>';
+	print '</th>';
 }
 
 print "</tr>\n";