diff --git a/htdocs/admin/dict.php b/htdocs/admin/dict.php
index e5c9dcb3127..1bf360dccf7 100644
--- a/htdocs/admin/dict.php
+++ b/htdocs/admin/dict.php
@@ -2510,11 +2510,11 @@ function fieldList($fieldlist, $obj = '', $tabname = '', $context = '')
 			print '</td>';
 		} elseif ($value == 'block_if_negative') {
 			print '<td>';
-			print $form->selectyesno("block_if_negative", (!empty($obj->{$value}) ? $obj->{$value}:''), 1);
+			print $form->selectyesno("block_if_negative", (empty($obj->block_if_negative) ? '' : $obj->block_if_negative), 1);
 			print '</td>';
 		} elseif ($value == 'type_duration') {
 			print '<td>';
-			print $form->selectTypeDuration('', (!empty($obj->{$value}) ? $obj->{$value}:''), array('i','h'));
+			print $form->selectTypeDuration('', empty($obj->type_duration) ? '' : $obj->type_duration), array('i','h'));
 			print '</td>';
 		} else {
 			$fieldValue = isset($obj->{$value}) ? $obj->{$value}: '';