diff --git a/html/semantics/selectors/pseudo-classes/autofill.html b/html/semantics/selectors/pseudo-classes/autofill.html
new file mode 100644
index 00000000000000..b7c3644bdbad02
--- /dev/null
+++ b/html/semantics/selectors/pseudo-classes/autofill.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Selector: pseudo-classes (:autofill)</title>
+<link rel=help href="https://html.spec.whatwg.org/multipage/#pseudo-classes">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+<script>
+test_valid_selector(":autofill");
+test_valid_selector(":-webkit-autofill", [":autofill", ":-webkit-autofill"]);
+</script>
