diff --git a/wagtail_ab_testing/test/templates/wagtail_ab_testing_test/simple_page.html b/wagtail_ab_testing/test/templates/wagtail_ab_testing_test/simple_page.html
index f682a64..c14e55a 100644
--- a/wagtail_ab_testing/test/templates/wagtail_ab_testing_test/simple_page.html
+++ b/wagtail_ab_testing/test/templates/wagtail_ab_testing_test/simple_page.html
@@ -1,5 +1,14 @@
 {% load wagtail_ab_testing_tags %}
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <h1>{{ page.title }}</h1>
 
-<h1>{{ page.title }}</h1>
-
-{% wagtail_ab_testing_script %}
+    {% wagtail_ab_testing_script %}
+</body>
+</html>
