diff --git a/themes/default/js/order-opc.js b/themes/default/js/order-opc.js
index da3be0ff0..24b4d256f 100644
--- a/themes/default/js/order-opc.js
+++ b/themes/default/js/order-opc.js
@@ -734,7 +734,7 @@ function multishippingMode(it)
 		$('#address_invoice').removeClass('item').addClass('alternate_item');
 		$('#multishipping_mode_box').removeClass('on');
 		$('.addressesAreEquals').show();
-		if ($('.addressesAreEquals').find('input:checked')) {
+		if ($('.addressesAreEquals').find('input:checked').length) {
 			$('#address_invoice_form').hide();
 		} else {
 			$('#address_invoice_form').show();