diff --git a/cpp/core/internal/bluetooth_bwu_handler.cc b/cpp/core/internal/bluetooth_bwu_handler.cc
index 57b03311..07eed2e6 100644
--- a/cpp/core/internal/bluetooth_bwu_handler.cc
+++ b/cpp/core/internal/bluetooth_bwu_handler.cc
@@ -1,3 +1,17 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #include "core/internal/bluetooth_bwu_handler.h"
 
 #include "core/internal/bluetooth_endpoint_channel.h"
diff --git a/cpp/core/internal/bluetooth_bwu_handler.h b/cpp/core/internal/bluetooth_bwu_handler.h
index 016e33b5..172d9f56 100644
--- a/cpp/core/internal/bluetooth_bwu_handler.h
+++ b/cpp/core/internal/bluetooth_bwu_handler.h
@@ -1,3 +1,17 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #ifndef CORE_INTERNAL_BLUETOOTH_BWU_HANDLER_H_
 #define CORE_INTERNAL_BLUETOOTH_BWU_HANDLER_H_
 
diff --git a/cpp/core/internal/wifi_lan_bwu_handler.cc b/cpp/core/internal/wifi_lan_bwu_handler.cc
index 3688fa9e..dd458d0f 100644
--- a/cpp/core/internal/wifi_lan_bwu_handler.cc
+++ b/cpp/core/internal/wifi_lan_bwu_handler.cc
@@ -1,3 +1,17 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #include "core/internal/wifi_lan_bwu_handler.h"
 
 #include <locale>
diff --git a/cpp/core/internal/wifi_lan_bwu_handler.h b/cpp/core/internal/wifi_lan_bwu_handler.h
index a724e939..17f71463 100644
--- a/cpp/core/internal/wifi_lan_bwu_handler.h
+++ b/cpp/core/internal/wifi_lan_bwu_handler.h
@@ -1,3 +1,17 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #ifndef CORE_INTERNAL_WIFI_LAN_BWU_HANDLER_H_
 #define CORE_INTERNAL_WIFI_LAN_BWU_HANDLER_H_