diff --git a/node_gallery_api.module b/node_gallery_api.module
index 1bd01bb..15ee010 100644
--- a/node_gallery_api.module
+++ b/node_gallery_api.module
@@ -485,7 +485,7 @@ function node_gallery_api_token_info() {
    */
 function node_gallery_api_tokens($type, $tokens, array $data = array(), array $options = array()) {
   $replacements = array();
-  if ($type == 'node') {
+  if ($type == 'node' && !empty($data['node'])) {
     $node = $data['node'];
     $relationships = node_gallery_api_get_relationships(NULL, $node->nid);
     if (!empty($relationships)) {