diff --git a/comptetraduction_export_fonctions.php b/comptetraduction_export_fonctions.php
index cd2bb411760d81fb327ebcf194bc6cae35fd6751..fd6cb01531383f45b9ef57c0afa942c4b57ba3d5 100644
--- a/comptetraduction_export_fonctions.php
+++ b/comptetraduction_export_fonctions.php
@@ -26,7 +26,11 @@ function trad_export_csv($trads) {
 
 	$writer->openToBrowser('traduction.xlsx'); // stream data directly to the browser
 
-	$writer->addRow(WriterEntityFactory::createRowFromArray($entetes)); // add a row at a time
+	$rowStyleBold = (new StyleBuilder())
+		->setFontBold()
+		->build();
+
+	$writer->addRow(WriterEntityFactory::createRowFromArray($entetes, $rowStyleBold)); // add a row at a time
 
 	foreach ($trads as $trad) {
 		$writer->addRow(WriterEntityFactory::createRowFromArray($trad)); // add a row at a time