diff --git a/includes/path.inc b/includes/path.inc
index 557503e1f119..a6fc4ee9dc04 100644
--- a/includes/path.inc
+++ b/includes/path.inc
@@ -72,7 +72,7 @@ function drupal_lookup_path($action, $path = '') {
           return $src;
         }
         else {
-          $map[$path] = $path;
+          $map[$path] = FALSE;
         }
       }
     }