diff --git a/packages/firebase_messaging/README.md b/packages/firebase_messaging/README.md
index 14313e6b489e..cd63c1bd6a5e 100644
--- a/packages/firebase_messaging/README.md
+++ b/packages/firebase_messaging/README.md
@@ -81,9 +81,10 @@ By default background messaging is not enabled. To handle messages in the backgr
    import io.flutter.app.FlutterApplication;
    import io.flutter.plugin.common.PluginRegistry;
    import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback;
-   import io.flutter.plugins.GeneratedPluginRegistrant;
    import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService;
-   
+   import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin;
+
+
    public class Application extends FlutterApplication implements PluginRegistrantCallback {
      @Override
      public void onCreate() {
@@ -93,7 +94,7 @@ By default background messaging is not enabled. To handle messages in the backgr
    
      @Override
      public void registerWith(PluginRegistry registry) {
-       GeneratedPluginRegistrant.registerWith(registry);
+       FirebaseMessagingPlugin.registerWith(registry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
      }
    }
    ```