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diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/map/speciesctor-get-ctor.js b/js/src/tests/test262/built-ins/TypedArray/prototype/map/speciesctor-get-ctor.js
new file mode 100644
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+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/map/speciesctor-get-ctor.js
@@ -0,0 +1,56 @@
+// Copyright (C) 2018 Peter Wong. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.map
+description: get constructor on SpeciesConstructor
+info: |
+  22.2.3.19 %TypedArray%.prototype.map ( callbackfn [ , thisArg ] )
+
+  ...
+  6. Let A be ? TypedArraySpeciesCreate(O, « len »).
+  ...
+
+  22.2.4.7 TypedArraySpeciesCreate ( exemplar, argumentList )
+
+  ...
+  3. Let constructor be ? SpeciesConstructor(exemplar, defaultConstructor).
+  ...
+
+  7.3.20 SpeciesConstructor ( O, defaultConstructor )
+
+  1. Assert: Type(O) is Object.
+  2. Let C be ? Get(O, "constructor").
+  3. If C is undefined, return defaultConstructor.
+  ...
+includes: [testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA([40, 41, 42, 43]);
+  var calls = 0;
+  var result;
+
+  Object.defineProperty(sample, "constructor", {
+    get: function() {
+      calls++;
+    }
+  });
+
+  result = sample.map(function() { return 0; });
+
+  assert.sameValue(calls, 1, "called custom ctor get accessor once");
+
+  assert.sameValue(
+    Object.getPrototypeOf(result),
+    Object.getPrototypeOf(sample),
+    "use defaultCtor on an undefined return - getPrototypeOf check"
+  );
+  assert.sameValue(
+    result.constructor,
+    TA,
+    "use defaultCtor on an undefined return - .constructor check"
+  );
+});
+
+reportCompare(0, 0);