diff --git a/htdocs/accountancy/admin/index.php b/htdocs/accountancy/admin/index.php
index 309dc094e82..543d32dedcc 100644
--- a/htdocs/accountancy/admin/index.php
+++ b/htdocs/accountancy/admin/index.php
@@ -409,7 +409,7 @@ foreach ($list_binding as $key) {
 	// Value
 	print '<td class="right">';
 	if ($key == 'ACCOUNTING_DATE_START_BINDING') {
-		print $form->selectDate(($conf->global->$key ? $db->idate($conf->global->$key) : -1), $key, 0, 0, 1);
+		print $form->selectDate((!empty($conf->global->$key) ? $db->idate($conf->global->$key) : -1), $key, 0, 0, 1);
 	} elseif ($key == 'ACCOUNTING_DEFAULT_PERIOD_ON_TRANSFER') {
 		$array = array(0=>$langs->trans("PreviousMonth"), 1=>$langs->trans("CurrentMonth"), 2=>$langs->trans("Fiscalyear"));
 		print $form->selectarray($key, $array, (isset($conf->global->ACCOUNTING_DEFAULT_PERIOD_ON_TRANSFER) ? $conf->global->ACCOUNTING_DEFAULT_PERIOD_ON_TRANSFER : 0));