diff --git a/lib/protos/src/op_store.rs b/lib/protos/src/op_store.rs
index 74e71d56e..4f47148e2 100644
--- a/lib/protos/src/op_store.rs
+++ b/lib/protos/src/op_store.rs
@@ -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.
+
 // This file is generated by rust-protobuf 2.18.0. Do not edit
 // @generated
 
diff --git a/lib/protos/src/store.rs b/lib/protos/src/store.rs
index e0aec0d9d..d4b450e76 100644
--- a/lib/protos/src/store.rs
+++ b/lib/protos/src/store.rs
@@ -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.
+
 // This file is generated by rust-protobuf 2.18.0. Do not edit
 // @generated
 
diff --git a/lib/protos/src/working_copy.rs b/lib/protos/src/working_copy.rs
index ea2d66f77..8d04c5417 100644
--- a/lib/protos/src/working_copy.rs
+++ b/lib/protos/src/working_copy.rs
@@ -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.
+
 // This file is generated by rust-protobuf 2.18.0. Do not edit
 // @generated