diff --git a/src/nsxwidget.h b/src/nsxwidget.h
index 521601922f2..3d91594c341 100644
--- a/src/nsxwidget.h
+++ b/src/nsxwidget.h
@@ -1,6 +1,6 @@
 /* Header for NS Cocoa part of xwidget and webkit widget.
 
-Copyright (C) 2019 Free Software Foundation, Inc.
+Copyright (C) 2019-2020 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
diff --git a/src/nsxwidget.m b/src/nsxwidget.m
index 2277cc97d55..370abee395c 100644
--- a/src/nsxwidget.m
+++ b/src/nsxwidget.m
@@ -1,6 +1,6 @@
 /* NS Cocoa part implementation of xwidget and webkit widget.
 
-Copyright (C) 2019 Free Software Foundation, Inc.
+Copyright (C) 2019-2020 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.