diff --git a/packages/integration_test/README.md b/packages/integration_test/README.md
index 08371120c66..9c7f32c78e1 100644
--- a/packages/integration_test/README.md
+++ b/packages/integration_test/README.md
@@ -108,8 +108,8 @@ This feature is currently supported on Android, iOS, and Web.
 
 ```dart
 void main() {
-  final IntegrationTestWidgetsFlutterBinding binding =
-      IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+  final binding = IntegrationTestWidgetsFlutterBinding.ensureInitialized()
+      as IntegrationTestWidgetsFlutterBinding;
 
   testWidgets('screenshot', (WidgetTester tester) async {
     // Build the app.
@@ -153,8 +153,8 @@ Future<void> main() async {
 
 ```dart
 void main() {
-  final IntegrationTestWidgetsFlutterBinding binding =
-      IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+  final binding = IntegrationTestWidgetsFlutterBinding.ensureInitialized()
+      as IntegrationTestWidgetsFlutterBinding;
 
   testWidgets('screenshot', (WidgetTester tester) async {
     // Build the app.