diff --git a/webroot/sites/all/modules/cck/modules/nodereference/nodereference.module b/webroot/sites/all/modules/cck/modules/nodereference/nodereference.module
index 1deda51..fecc3da 100644
--- a/webroot/sites/all/modules/cck/modules/nodereference/nodereference.module
+++ b/webroot/sites/all/modules/cck/modules/nodereference/nodereference.module
@@ -820,7 +820,8 @@ function _nodereference_potential_references($field, $string = '', $match = 'con
     // Store the results.
     $results[$cid] = !empty($references) ? $references : array();
   }
-
+  // Allow other modules to change the allowed values
+  drupal_alter('nodereference_allowed_values', $results[$cid], $field);
   return $results[$cid];
 }