diff --git a/src/proto/grpc/testing/control.proto b/src/proto/grpc/testing/control.proto
index 3892ed3eb33..c973b639d87 100644
--- a/src/proto/grpc/testing/control.proto
+++ b/src/proto/grpc/testing/control.proto
@@ -1,4 +1,4 @@
-// Copyright 2015, Google Inc.
+// Copyright 2015-2016, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without