diff --git a/waveshare2in13v2/doc.go b/waveshare2in13v2/doc.go
index 265bb6a..83bd2e4 100644
--- a/waveshare2in13v2/doc.go
+++ b/waveshare2in13v2/doc.go
@@ -1,4 +1,4 @@
-// Copyright 2018 The Periph Authors. All rights reserved.
+// Copyright 2021 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
diff --git a/waveshare2in13v2/waveshare213v2.go b/waveshare2in13v2/waveshare213v2.go
index 971c045..597fdc0 100644
--- a/waveshare2in13v2/waveshare213v2.go
+++ b/waveshare2in13v2/waveshare213v2.go
@@ -1,3 +1,7 @@
+// Copyright 2021 The Periph Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
 package waveshare2in13v2
 
 import (