diff --git a/spec.html b/spec.html
index 50399a6a83b..2dc640e67dd 100644
--- a/spec.html
+++ b/spec.html
@@ -11780,8 +11780,10 @@
[[Set]] ( _P_, _V_, _Receiver_ )
1. If Type(_P_) is String, then
1. Let _numericIndex_ be ! CanonicalNumericIndexString(_P_).
1. If _numericIndex_ is not *undefined*, then
- 1. Perform ? IntegerIndexedElementSet(_O_, _numericIndex_, _V_).
- 1. Return *true*.
+ 1. If ! IsValidIntegerIndex(_O_, _numericIndex_) is *false*, return *true*.
+ 1. If ! SameValue(_O_, _Receiver_) is *true*, then
+ 1. Perform ? IntegerIndexedElementSet(_O_, _numericIndex_, _V_).
+ 1. Return *true*.
1. Return ? OrdinarySet(_O_, _P_, _V_, _Receiver_).
@@ -11868,15 +11870,15 @@ IntegerIndexedElementSet ( _O_, _index_, _value_ )
The abstract operation IntegerIndexedElementSet takes arguments _O_, _index_ (a Number), and _value_. It performs the following steps when called:
1. Assert: _O_ is an Integer-Indexed exotic object.
+ 1. Assert: ! IsValidIntegerIndex(_O_, _index_) is *true*.
1. If _O_.[[ContentType]] is ~BigInt~, let _numValue_ be ? ToBigInt(_value_).
1. Otherwise, let _numValue_ be ? ToNumber(_value_).
- 1. If ! IsValidIntegerIndex(_O_, _index_) is *true*, then
- 1. Let _offset_ be _O_.[[ByteOffset]].
- 1. Let _arrayTypeName_ be the String value of _O_.[[TypedArrayName]].
- 1. Let _elementSize_ be the Element Size value specified in for _arrayTypeName_.
- 1. Let _indexedPosition_ be (ℝ(_index_) × _elementSize_) + _offset_.
- 1. Let _elementType_ be the Element Type value in for _arrayTypeName_.
- 1. Perform SetValueInBuffer(_O_.[[ViewedArrayBuffer]], _indexedPosition_, _elementType_, _numValue_, *true*, ~Unordered~).
+ 1. Let _offset_ be _O_.[[ByteOffset]].
+ 1. Let _arrayTypeName_ be the String value of _O_.[[TypedArrayName]].
+ 1. Let _elementSize_ be the Element Size value specified in for _arrayTypeName_.
+ 1. Let _indexedPosition_ be (ℝ(_index_) × _elementSize_) + _offset_.
+ 1. Let _elementType_ be the Element Type value in for _arrayTypeName_.
+ 1. Perform SetValueInBuffer(_O_.[[ViewedArrayBuffer]], _indexedPosition_, _elementType_, _numValue_, *true*, ~Unordered~).
1. Return NormalCompletion(*undefined*).