diff --git a/packages/flutter_tools/lib/src/test/flutter_platform.dart b/packages/flutter_tools/lib/src/test/flutter_platform.dart
index 84c5687c3c5..9cb4d412e75 100644
--- a/packages/flutter_tools/lib/src/test/flutter_platform.dart
+++ b/packages/flutter_tools/lib/src/test/flutter_platform.dart
@@ -88,7 +88,9 @@ FlutterPlatform installHook({
   FlutterProject flutterProject,
   String icudtlPath,
   PlatformPluginRegistration platformPluginRegistration,
-  @required List<String> extraFrontEndOptions,
+  List<String> extraFrontEndOptions,
+  // Deprecated, use extraFrontEndOptions.
+  List<String> dartExperiments,
 }) {
   assert(testWrapper != null);
   assert(enableObservatory || (!startPaused && observatoryPort == null));