Index: domain_path.module
===================================================================
--- domain_path.module	(revision 4701)
+++ domain_path.module	(revision 5302)
@@ -32,8 +32,8 @@
     return;
   }
   $paths = domain_path_paths('nid', $nid);
-  if (isset($paths[$domain_id])) {
-    $path = $paths[$domain_id];
+  if (isset($paths[$nid])) {
+    $path = $paths[$nid];
   }
   else {
     $path = drupal_get_path_alias($alias, $path_language);