diff --git a/promises/index.php b/promises/index.php
index 8b9725e..7866911 100644
--- a/promises/index.php
+++ b/promises/index.php
@@ -6,7 +6,7 @@ require_once(dirname(__FILE__) .'/vendor/autoload.php');
 
 // lib.php, helper functions
 Lib\plain();
-Lib\printf('load');
+Lib\printf('https://sergio.am/code/www-tests');
 
 use GuzzleHttp\Client;
 use GuzzleHttp\Promise;
@@ -25,8 +25,8 @@ $requests = function ($n) use ($client) {
 
     for ($i = 0; $i < $n; $i++) {
         yield function() use ($client, $uri, $i) {
-            Lib\printf('  yield '. $i);
-            return $client->getAsync($uri . http_build_query(['o' => $i, 's' => random_int(1, 5)]));
+            Lib\printf('  yield i='. $i);
+            return $client->getAsync($uri . http_build_query(['i' => $i, 's' => random_int(1, 5)]));
         };
     }
 };