diff --git a/htdocs/adherents/admin/member.php b/htdocs/adherents/admin/member.php
index ed2453ef793..bae229bc77b 100644
--- a/htdocs/adherents/admin/member.php
+++ b/htdocs/adherents/admin/member.php
@@ -108,7 +108,7 @@ if ($action == 'set_default') {
 	$res3 = dolibarr_set_const($db, 'ADHERENT_CREATE_EXTERNAL_USER_LOGIN', GETPOST('ADHERENT_CREATE_EXTERNAL_USER_LOGIN', 'alpha'), 'chaine', 0, '', $conf->entity);
 	$res4 = dolibarr_set_const($db, 'ADHERENT_BANK_USE', GETPOST('ADHERENT_BANK_USE', 'alpha'), 'chaine', 0, '', $conf->entity);
 	// Use vat for invoice creation
-	if ($conf->facture->enabled) {
+	if (!empty($conf->facture->enabled)) {
 		$res4 = dolibarr_set_const($db, 'ADHERENT_VAT_FOR_SUBSCRIPTIONS', GETPOST('ADHERENT_VAT_FOR_SUBSCRIPTIONS', 'alpha'), 'chaine', 0, '', $conf->entity);
 		$res5 = dolibarr_set_const($db, 'ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS', GETPOST('ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS', 'alpha'), 'chaine', 0, '', $conf->entity);
 		if (!empty($conf->product->enabled) || !empty($conf->service->enabled)) {
@@ -256,7 +256,7 @@ print '</td>';
 print "</tr>\n";
 
 // Use vat for invoice creation
-if ($conf->facture->enabled) {
+if (!empty($conf->facture->enabled)) {
 	print '<tr class="oddeven"><td>'.$langs->trans("VATToUseForSubscriptions").'</td>';
 	if (!empty($conf->banque->enabled)) {
 		print '<td>';