diff --git a/protos/Makefile b/protos/Makefile
index cc5b3e8..363c22b 100644
--- a/protos/Makefile
+++ b/protos/Makefile
@@ -1,5 +1,5 @@
 #
-# Copyright 2016 the original author or authors.
+# Copyright 2017 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.