diff --git a/tests/wpt/web-platform-tests/html/semantics/forms/the-input-element/maxlength-manual.html b/tests/wpt/web-platform-tests/html/semantics/forms/the-input-element/maxlength-manual.html
new file mode 100644
index 00000000000..fdf6c264410
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/forms/the-input-element/maxlength-manual.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset=utf-8>
+    <title>input max length</title>
+    <link rel="author" title="Sam Gibson" href="mailto:sam@ifdown.net">
+    <link rel=help href="https://html.spec.whatwg.org/multipage/forms.html#the-maxlength-and-minlength-attributes">
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+  </head>
+
+  <body>
+    <div id="log"></div>
+    <p>Type a letter anywhere into the input field (do not select any text, or otherwise manipulate the input)</p>
+    <input type=text maxlength=4 id=only-four value="inpu"></input>
+
+    <script>
+      var input;
+      setup(function() {
+        input = document.getElementById('only-four');
+      }, {explicit_done: true, explicit_timeout: true});
+
+
+      on_event(input, 'keyup', function(event) {
+          if  ((event.keyCode >= 65 && event.keyCode <= 90) ||
+                (event.keyCode >= 97 && event.keyCode <= 122)) {
+            test(function() {
+              assert_equals(input.value, "inpu");
+            }, 'input content should limit to maxlength')
+
+            done();
+          }
+      });
+    </script>
+  </body>
+</html>
+
