diff --git a/conditional_fields.module b/conditional_fields.module
index 31c76ec..54caf33 100644
--- a/conditional_fields.module
+++ b/conditional_fields.module
@@ -245,6 +245,11 @@ function conditional_fields_element_after_build($element, &$form_state) {
 
   $form = &$form_state['complete form'];
 
+  // Add support for the Taxonomy Manager module.
+  if ($form['#form_id'] == 'taxonomy_manager_form' && isset($form['term_data'])) {
+    $form = &$form['term_data'];
+  }
+
   // Avoid processing fields in fields_ui administration pages.
   if (drupal_substr($form['#form_id'], 0, 9) == 'field_ui_') {
     return $element;