diff --git a/tests/wpt/tests/css/css-test.html b/tests/wpt/tests/css/css-test.html
index cffb6eb..6100a49 100644
--- a/tests/wpt/tests/css/out-of-sync-test.html
+++ b/tests/wpt/tests/css/out-of-sync-test.html
@@ -1,3 +1,3 @@
 <html>
-<h1>css test!</h1>
+<h1>css test!</h1>hi
 </html>