diff --git modules/forum/forum.install modules/forum/forum.install
index a5dbc3e..192859e 100644
--- modules/forum/forum.install
+++ modules/forum/forum.install
@@ -47,7 +47,7 @@ function forum_enable() {
   // Create the 'taxonomy_forums' field if it doesn't already exist.
   if (!field_info_field('taxonomy_forums')) {
     $field = array(
-      'field_name' => 'taxonomy_' . $vocabulary->machine_name,
+      'field_name' => 'taxonomy_forums',
       'type' => 'taxonomy_term_reference',
       'settings' => array(
         'allowed_values' => array(
@@ -74,7 +74,7 @@ function forum_enable() {
 
     // Create the instance on the bundle.
     $instance = array(
-      'field_name' => 'taxonomy_' . $vocabulary->machine_name,
+      'field_name' => 'taxonomy_forums',
       'entity_type' => 'node',
       'label' => $vocabulary->name,
       'bundle' => 'forum',
diff --git modules/forum/forum.module modules/forum/forum.module
index 8388cda..b9f5f7a 100644
--- modules/forum/forum.module
+++ modules/forum/forum.module
@@ -170,12 +170,9 @@ function forum_menu_local_tasks_alter(&$data, $router_item, $root_path) {
     $tid = (isset($router_item['page_arguments'][0]) ? $router_item['page_arguments'][0]->tid : 0);
     $forum_term = forum_forum_load($tid);
     if ($forum_term) {
-      $vid = variable_get('forum_nav_vocabulary', 0);
-      $vocabulary = taxonomy_vocabulary_load($vid);
-
       $links = array();
       // Loop through all bundles for forum taxonomy vocabulary field.
-      $field = field_info_field('taxonomy_' . $vocabulary->machine_name);
+      $field = field_info_field('taxonomy_forums');
       foreach ($field['bundles']['node'] as $type) {
         if (node_access('create', $type)) {
           $links[$type] = array(