diff --git a/simple_sdf/lib/main.dart b/simple_sdf/lib/main.dart
index 4a1bf38c4..214c68783 100644
--- a/simple_sdf/lib/main.dart
+++ b/simple_sdf/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 import 'dart:ui' as ui;
 
 import 'package:flutter/material.dart';
diff --git a/simple_sdf/shaders/SDF.frag b/simple_sdf/shaders/SDF.frag
index 327222662..e854a2272 100644
--- a/simple_sdf/shaders/SDF.frag
+++ b/simple_sdf/shaders/SDF.frag
@@ -1,3 +1,7 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 #version 460 core
 
 #include <flutter/runtime_effect.glsl>
diff --git a/simple_sdf/test/widget_test.dart b/simple_sdf/test/widget_test.dart
index 794023811..50e51b28c 100644
--- a/simple_sdf/test/widget_test.dart
+++ b/simple_sdf/test/widget_test.dart
@@ -1,3 +1,7 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 import 'package:flutter_test/flutter_test.dart';
 import 'package:simple_sdf/main.dart';
 
diff --git a/simple_shader/lib/main.dart b/simple_shader/lib/main.dart
index e314f91bf..dea7caa88 100644
--- a/simple_shader/lib/main.dart
+++ b/simple_shader/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 import 'dart:ui' as ui;
 
 import 'package:flutter/material.dart';
diff --git a/simple_shader/shaders/simple.frag b/simple_shader/shaders/simple.frag
index 20075c9ee..8ca802f04 100644
--- a/simple_shader/shaders/simple.frag
+++ b/simple_shader/shaders/simple.frag
@@ -1,3 +1,7 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 #version 460 core
 
 #include <flutter/runtime_effect.glsl>
diff --git a/simple_shader/test/widget_test.dart b/simple_shader/test/widget_test.dart
index 97c66d107..8b876a5ef 100644
--- a/simple_shader/test/widget_test.dart
+++ b/simple_shader/test/widget_test.dart
@@ -1,3 +1,7 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 import 'package:flutter_test/flutter_test.dart';
 import 'package:simple_shader/main.dart';