diff --git a/tests/lib/isolate/unmodifiable_typed_data_pass_by_copy_test.dart b/tests/lib/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
index 3d75ef9a680..68c4599d656 100644
--- a/tests/lib/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
+++ b/tests/lib/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
@@ -10,7 +10,7 @@ import "package:expect/expect.dart";
 
 main() {
   final backing = new Uint8List(1);
-  final original = new UnmodifiableUint8ListView(backing);
+  final original = backing.asUnmodifiableView();
   var port;
   port = new RawReceivePort((copy) {
     port.close();
diff --git a/tests/lib_2/isolate/unmodifiable_typed_data_pass_by_copy_test.dart b/tests/lib_2/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
index 110598e16b3..e21ecc9c70b 100644
--- a/tests/lib_2/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
+++ b/tests/lib_2/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
@@ -12,7 +12,7 @@ import "package:expect/expect.dart";
 
 main() {
   final backing = new Uint8List(1);
-  final original = new UnmodifiableUint8ListView(backing);
+  final original = backing.asUnmodifiableView();
   var port;
   port = new RawReceivePort((copy) {
     port.close();