--- views_plugin_style_lineage_nested.inc	2010-07-25 09:52:25.000000000 -0500
+++ views_plugin_style_lineage_nested.inc.new	2010-07-25 10:06:30.000000000 -0500
@@ -195,7 +195,7 @@
       $field_alias = $this->view->field[$nesting_field]->field_alias;
     }
 
-    if ($nesting_field) {
+    if ($field_alias) {
       foreach ($records as $index => $row) {
         $nesting = '';
         // @todo Avoid using eval().