diff --git a/handlers/views_handler_filter_dynamic_fields.inc b/handlers/views_handler_filter_dynamic_fields.inc
index ab2f4f3..2cbef16 100755
--- a/handlers/views_handler_filter_dynamic_fields.inc
+++ b/handlers/views_handler_filter_dynamic_fields.inc
@@ -229,7 +229,7 @@ class views_handler_filter_dynamic_fields extends views_handler_filter {
           '#description' => t('Select the fields to display in the view'),
         );
         // TODO: Why is the default selection list not showing up here? (no sortability)
-        if (!$this->options['checkboxes'] && !$exposed_input_fields) {
+        if (!$this->options['checkboxes'] && !isset($exposed_input_fields)) {
           $form['value']['#value'] = $field_names_defaults;
         }
         $displayed_field_names = $field_names;