diff --git a/tests/index.html b/tests/index.html
index 16de5e4..2246526 100644
--- a/tests/index.html
+++ b/tests/index.html
@@ -1041,7 +1041,7 @@ console.log(c2.__checkbox.getAttribute('checked'));
       var gui = new GUI();
 
       // Add a lot of controllers. This will fail if you have some freakishly tall monitor.
-      for (var i = 0; i < 50; i++) {
+      for (var i = 0; i < 100; i++) {
         gui.add({ x: 0 }, 'x');
       }