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diff --git a/test/built-ins/AsyncGeneratorPrototype/return/prop-desc.js b/test/built-ins/AsyncGeneratorPrototype/return/prop-desc.js
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+++ b/test/built-ins/AsyncGeneratorPrototype/return/prop-desc.js
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+// Copyright (C) 2018 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-asyncgenerator-prototype-thow
+description: GeneratorPrototype.return property description
+info: |
+  This property has the attributes { [[Writable]]: false, [[Enumerable]]:
+  false, [[Configurable]]: false }.
+includes: [propertyHelper.js]
+features: [async-iteration]
+---*/
+
+async function* g() {}
+var AsyncGeneratorPrototype = Object.getPrototypeOf(g).prototype;
+
+verifyProperty(AsyncGeneratorPrototype, "return", {
+  enumerable: false,
+  writable: true,
+  configurable: true,
+});