diff --git a/tests/index.html b/tests/index.html
index af580c6..6470e4c 100644
--- a/tests/index.html
+++ b/tests/index.html
@@ -28,8 +28,6 @@
   return div.firstChild.firstChild &&
          div.firstChild.firstChild.tagName == 'TEMPLATE';
 }();
-
-var forceCollectObservers = true;
 </script>
 <script src="../load.js"></script>
 </head>