diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index 2d2b492..5cf4208 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,13 @@
+2018-03-22  Nan Wang  <n_wang@apple.com>
+
+        AX: Web table row count is incorrect when role row is added to <tr> in DOM
+        https://bugs.webkit.org/show_bug.cgi?id=183922
+
+        Reviewed by Chris Fleizach.
+
+        * accessibility/row-with-aria-role-in-native-table-expected.txt: Added.
+        * accessibility/row-with-aria-role-in-native-table.html: Added.
+
 2018-03-22  Daniel Bates  <dabates@apple.com>
 
         CSS mask images should be retrieved using potentially CORS-enabled fetch
diff --git a/LayoutTests/accessibility/row-with-aria-role-in-native-table-expected.txt b/LayoutTests/accessibility/row-with-aria-role-in-native-table-expected.txt
new file mode 100644
index 0000000..32474e3
--- /dev/null
+++ b/LayoutTests/accessibility/row-with-aria-role-in-native-table-expected.txt
@@ -0,0 +1,12 @@
+Item 1
+This tests if a native tr element uses the 'row' role, but forgets to add role='grid' to the native table element, the table still exposes the right numbers of rows/cells.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS table.rowCount is 1
+PASS table.columnCount is 1
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
diff --git a/LayoutTests/accessibility/row-with-aria-role-in-native-table.html b/LayoutTests/accessibility/row-with-aria-role-in-native-table.html
new file mode 100644
index 0000000..a766fd1
--- /dev/null
+++ b/LayoutTests/accessibility/row-with-aria-role-in-native-table.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
+<html>
+<head>
+<script src="../resources/js-test-pre.js"></script>
+</head>
+<body id="body">
+
+<table id="table">
+<thead>
+<tr role="row"><th>Item 1</th></tr>
+</thead>
+<tbody></tbody>
+</table>
+
+<p id="description"></p>
+<div id="console"></div>
+
+<script>
+
+    description("This tests if a native tr element uses the 'row' role, but forgets to add role='grid' to the native table element, the table still exposes the right numbers of rows/cells.");
+
+    if (window.accessibilityController) {
+        var table = accessibilityController.accessibleElementById("table");
+        shouldBe("table.rowCount", "1");
+        shouldBe("table.columnCount", "1");
+    }
+
+</script>
+
+<script src="../resources/js-test-post.js"></script>
+</body>
+</html>