diff --git a/src/applications/repository/query/PhabricatorRepositoryQuery.php b/src/applications/repository/query/PhabricatorRepositoryQuery.php
--- a/src/applications/repository/query/PhabricatorRepositoryQuery.php
+++ b/src/applications/repository/query/PhabricatorRepositoryQuery.php
@@ -425,6 +425,7 @@
         'type' => 'string',
         'unique' => true,
         'reverse' => true,
+        'null' => 'tail',
       ),
       'name' => array(
         'table' => 'r',