diff --git a/css/css-ui/appearance-cssom-001.html b/css/css-ui/appearance-cssom-001.html
index 2da20a0ac923ea..36402da51cf27d 100644
--- a/css/css-ui/appearance-cssom-001.html
+++ b/css/css-ui/appearance-cssom-001.html
@@ -2,7 +2,7 @@
 <title>CSS Basic User Interface Test: appearance CSSOM</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="CSSOM for the appearance/-webkit-appearance property is correct.">
-<meta name="variant" content="">
+<meta name="variant" content="?include=Invalid">
 <meta name="variant" content="?exclude=Invalid">
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>