diff --git a/user_reference/user_reference.module b/user_reference/user_reference.module
index ca2bbfe..ef5ba3a 100644
--- a/user_reference/user_reference.module
+++ b/user_reference/user_reference.module
@@ -67,7 +67,7 @@ function user_reference_field_settings_form($field, $instance, $has_data) {
     '#default_value' => is_array($settings['referenceable_status'])
       ? array_filter($settings['referenceable_status'])
       : array(1),
-    '#options' => array(1 => t('Active'), 0 => t('Blocked')),
+    '#options' => array(1 => t('Active'), '-0' => t('Blocked')),
   );
 
   if (module_exists('views')) {