diff --git a/references_dialog.dialog_widgets.inc b/references_dialog.dialog_widgets.inc
index 34f1d87..a132881 100644
--- a/references_dialog.dialog_widgets.inc
+++ b/references_dialog.dialog_widgets.inc
@@ -389,6 +389,6 @@ function references_dialog_term_reference_views_query($view, $instance, $field)
   // We need to make sure that no entries that we can't add to our field shows
   // up, so we need to limit the data here.
   $vocabulary = taxonomy_vocabulary_load($field['settings']['allowed_values'][0]['vocabulary']);
-  $types = array($vocabulary->vid);
-  $view->query->add_where(0, "$view->base_table.vid", $types);
+  $types = array($vocabulary->machine_name);
+  $view->query->add_where(0, "$view->base_table.vocabulary", $types);
 }
diff --git a/references_dialog.module b/references_dialog.module
index f76ad65..771bdf2 100644
--- a/references_dialog.module
+++ b/references_dialog.module
@@ -819,10 +819,10 @@ function references_dialog_term_reference_autocomplete_validate($element, &$form
       $vocabularies = array();
       foreach ($field['settings']['allowed_values'] as $tree) {
         if ($vocabulary = taxonomy_vocabulary_load($tree['vocabulary'])) {
-          $vocabularies[$vocabulary->vid] = $vocabulary;
+          $vocabularies[$vocabulary->machine_name] = $vocabulary->machine_name;
         }
       }
-      if ($possibilities = taxonomy_term_load_multiple(array(), array('name' => trim($element['#value']), 'vid' => array_keys($vocabularies)))) {
+      if ($possibilities = taxonomy_term_load_multiple(array(), array('name' => trim($element['#value']), 'vocabulary' => array_keys($vocabularies)))) {
         $term = array_pop($possibilities);
       }
     }