diff --git a/advanced_forum.module b/advanced_forum.module
index 02534c9..8384fa3 100644
--- a/advanced_forum.module
+++ b/advanced_forum.module
@@ -659,12 +659,16 @@ function advanced_forum_forum_topic_list_sort_form($form_state) {
   );
   $form['inline']['order'] = array(
     '#type' => 'select',
+    '#title' => t('Order by'),
+    '#title_display' => 'invisible',
     '#options' => $options,
     '#default_value' => $handler->options['default'],
   );
 
   $form['inline']['sort'] = array(
     '#type' => 'select',
+    '#title' => t('Sort'),
+    '#title_display' => 'invisible',
     '#options' => array(
       'asc' => t('Up'),
       'desc' => t('Down'),