diff --git a/htdocs/fourn/facture/card.php b/htdocs/fourn/facture/card.php
index 3889ab026a0..5a9b1054773 100644
--- a/htdocs/fourn/facture/card.php
+++ b/htdocs/fourn/facture/card.php
@@ -3014,7 +3014,7 @@ if ($action == 'create') {
}
// Show link for "recalculate"
if ($object->getVentilExportCompta() == 0) {
- $s = $langs->trans("ReCalculate").' ';
+ $s = ''.$langs->trans("ReCalculate").' ';
$s .= 'id.'&action=calculate&calculationrule=totalofround">'.$langs->trans("Mode1").'';
$s .= ' / ';
$s .= 'id.'&action=calculate&calculationrule=roundoftotal">'.$langs->trans("Mode2").'';