diff --git a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
index b22bd8444d6..a26f483981c 100644
--- a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
+++ b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
@@ -3,8 +3,7 @@
 //     source: grpc/health/v1/health.proto
 // </auto-generated>
 // Original file comments:
-// Copyright 2015, gRPC Authors
-// All rights reserved.
+// Copyright 2015 The gRPC Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/src/ruby/pb/grpc/health/v1/health_services_pb.rb b/src/ruby/pb/grpc/health/v1/health_services_pb.rb
index c905f17136c..169e160f90f 100644
--- a/src/ruby/pb/grpc/health/v1/health_services_pb.rb
+++ b/src/ruby/pb/grpc/health/v1/health_services_pb.rb
@@ -1,8 +1,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # Source: grpc/health/v1/health.proto for package 'grpc.health.v1'
 # Original file comments:
-# Copyright 2015, gRPC Authors
-# All rights reserved.
+# Copyright 2015 The gRPC Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.