diff --git a/taxonomy_title.module b/taxonomy_title.module
index 10a5669..359a784 100644
--- a/taxonomy_title.module
+++ b/taxonomy_title.module
@@ -265,11 +265,13 @@ function taxonomy_title_token_list($type = 'all') {
 function taxonomy_title_token_values($type, $object = NULL, $options = array()) {
   $values = array();
   if ($type == 'taxonomy') {
+    if (!empty($object)) {
       $category = $object;
       // Use taxonomy title if it exists, else the category name.
       $title = _taxonomy_title_get($category->tid);
       $values['term-title'] = ($title) ? check_plain($title) : check_plain($category->name);
       $values['term-title-raw'] = ($title) ? $title : $category->name;
+    }
   }
   return $values;
 }