diff --git a/builtin_typedarrays.go b/builtin_typedarrays.go
index e867da83..1fd672c1 100644
--- a/builtin_typedarrays.go
+++ b/builtin_typedarrays.go
@@ -510,7 +510,7 @@ func (r *Runtime) typedArrayProto_filter(call FunctionCall) Value {
 			}
 		}
 		c := r.speciesConstructorObj(o, ta.defaultCtor)
-		ab := r._newArrayBuffer(r.global.ArrayBufferPrototype, nil)
+		ab := r._newArrayBuffer(r.getArrayBufferPrototype(), nil)
 		ab.data = buf
 		kept := r.toConstructor(ta.defaultCtor)([]Value{ab.val}, ta.defaultCtor)
 		if c == ta.defaultCtor {
@@ -1215,7 +1215,7 @@ func (r *Runtime) typedArray_of(call FunctionCall) Value {
 }
 
 func (r *Runtime) allocateTypedArray(newTarget *Object, length int, taCtor typedArrayObjectCtor, proto *Object) *typedArrayObject {
-	buf := r._newArrayBuffer(r.global.ArrayBufferPrototype, nil)
+	buf := r._newArrayBuffer(r.getArrayBufferPrototype(), nil)
 	ta := taCtor(buf, 0, length, r.getPrototypeFromCtor(newTarget, nil, proto))
 	if length > 0 {
 		buf.data = allocByteSlice(length * ta.elemSize)
diff --git a/typedarrays.go b/typedarrays.go
index 132cbf45..9af03503 100644
--- a/typedarrays.go
+++ b/typedarrays.go
@@ -117,7 +117,7 @@ func (a ArrayBuffer) Detached() bool {
 // using this typed array will result in unaligned access which may cause performance degradation or runtime panics
 // on some architectures or configurations.
 func (r *Runtime) NewArrayBuffer(data []byte) ArrayBuffer {
-	buf := r._newArrayBuffer(r.global.ArrayBufferPrototype, nil)
+	buf := r._newArrayBuffer(r.getArrayBufferPrototype(), nil)
 	buf.data = data
 	return ArrayBuffer{
 		buf: buf,