Index: taxonomy_redirect.module
===================================================================
--- taxonomy_redirect.module	(revision 15070)
+++ taxonomy_redirect.module	(working copy)
@@ -521,6 +521,8 @@
   // Remove the child term from the array
   array_pop($parents);
   $parent_path = '';
+  $parent_names = '';
+  $parent_ids = '';
   foreach ($parents as $parent) {
     $parent_names = $parent_names ? $parent_names.'/'.$parent->name : $parent->name;
     $parent_ids = $parent_ids ? $parent_ids.'/'.$parent->tid : $parent->tid;