diff --git a/test/mjsunit/regress/regress-544991.js b/test/mjsunit/regress/regress-544991.js
new file mode 100644
index 0000000..911d8ac
--- /dev/null
+++ b/test/mjsunit/regress/regress-544991.js
@@ -0,0 +1,23 @@
+// Copyright 2015 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-species
+
+'use strict';
+
+var typedArray = new Int8Array(1);
+var saved;
+var called;
+class TypedArraySubclass extends Int8Array {
+  constructor(x) {
+    super(x);
+    called = true;
+    saved = x;
+  }
+}
+typedArray.constructor = TypedArraySubclass
+typedArray.map(function(){});
+
+assertTrue(called);
+assertEquals(saved, 1);