diff --git a/src/dawn/CPPLINT.cfg b/src/dawn/CPPLINT.cfg
index 4cc4411907..1a4d058ed0 100644
--- a/src/dawn/CPPLINT.cfg
+++ b/src/dawn/CPPLINT.cfg
@@ -1,7 +1,6 @@
 filter=-build/include_order
 filter=-build/include_what_you_use
 filter=-build/namespaces
-filter=-legal/copyright
 filter=-readability/casting
 filter=-readability/inheritance
 filter=-readability/namespace
diff --git a/src/dawn/native/AsyncTask.cpp b/src/dawn/native/AsyncTask.cpp
index a1e29486d9..2f764ef556 100644
--- a/src/dawn/native/AsyncTask.cpp
+++ b/src/dawn/native/AsyncTask.cpp
@@ -1,3 +1,17 @@
+// Copyright 2022 The Dawn Authors
+//
+// 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
+//
+//     http://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 "dawn/native/AsyncTask.h"
 
 #include "dawn/platform/DawnPlatform.h"
diff --git a/src/dawn/native/vulkan/ExternalHandle.h b/src/dawn/native/vulkan/ExternalHandle.h
index d2a68d5cad..d5a607e566 100644
--- a/src/dawn/native/vulkan/ExternalHandle.h
+++ b/src/dawn/native/vulkan/ExternalHandle.h
@@ -1,3 +1,17 @@
+// Copyright 2022 The Dawn Authors
+//
+// 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
+//
+//     http://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 SRC_DAWN_NATIVE_VULKAN_EXTERNALHANDLE_H_
 #define SRC_DAWN_NATIVE_VULKAN_EXTERNALHANDLE_H_