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diff --git a/test/built-ins/TypedArrays/internals/Set/BigInt/detached-buffer-key-is-not-numeric-index.js b/test/built-ins/TypedArrays/internals/Set/BigInt/detached-buffer-key-is-not-numeric-index.js
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+++ b/test/built-ins/TypedArrays/internals/Set/BigInt/detached-buffer-key-is-not-numeric-index.js
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+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-integer-indexed-exotic-objects-set-p-v-receiver
+description: >
+  Does not throw on an instance with a detached buffer if key is not a number
+info: |
+  9.4.5.5 [[Set]] ( P, V, Receiver)
+
+  ...
+  2. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+    ...
+  3. Return ? OrdinarySet(O, P, V, Receiver).
+includes: [testBigIntTypedArray.js, detachArrayBuffer.js]
+features: [BigInt, Reflect, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA([42n, 43n]);
+  $DETACHBUFFER(sample.buffer);
+
+  assert.sameValue(Reflect.set(sample, "foo", "test262"), true);
+  assert.sameValue(sample.foo, "test262");
+});