diff --git a/test/mjsunit/regress/regress-5036.js b/test/mjsunit/regress/regress-5036.js
new file mode 100644
index 0000000..036edd9
--- /dev/null
+++ b/test/mjsunit/regress/regress-5036.js
@@ -0,0 +1,7 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-unicode-regexps
+
+assertEquals(["1\u212a"], /\d\w/ui.exec("1\u212a"));