diff --git a/src/applications/transactions/bulk/PhabricatorBulkEngine.php b/src/applications/transactions/bulk/PhabricatorBulkEngine.php
--- a/src/applications/transactions/bulk/PhabricatorBulkEngine.php
+++ b/src/applications/transactions/bulk/PhabricatorBulkEngine.php
@@ -153,7 +153,7 @@
       ->setViewer($viewer);
 
     $query_key = $request->getURIData('queryKey');
-    if (strlen($query_key)) {
+    if (phutil_nonempty_string($query_key)) {
       if ($search_engine->isBuiltinQuery($query_key)) {
         $saved = $search_engine->buildSavedQueryFromBuiltin($query_key);
       } else {