diff --git a/src/sdl12/SRB2CE/cehelp.c b/src/sdl12/SRB2CE/cehelp.c
index 7c5efdee92b0b187f007c8abf43c6141d6e8d6fc..13505cff732c68c7168b6830680064498be39304 100644
--- a/src/sdl12/SRB2CE/cehelp.c
+++ b/src/sdl12/SRB2CE/cehelp.c
@@ -1,7 +1,7 @@
 // Emacs style mode select   -*- C++ -*-
 //-----------------------------------------------------------------------------
 //
-// Copyright (C) 2004 by Sonic Team Jr.
+// Copyright (C) 2004-2018 by Sonic Team Jr.
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License
diff --git a/src/sdl12/SRB2CE/cehelp.h b/src/sdl12/SRB2CE/cehelp.h
index bc265b05859de1029eac92fafdebb1c672aa9519..3ed0d9dd4bc55f94139b9f581e600e5438f68dc3 100644
--- a/src/sdl12/SRB2CE/cehelp.h
+++ b/src/sdl12/SRB2CE/cehelp.h
@@ -1,7 +1,7 @@
 // Emacs style mode select   -*- C++ -*-
 //-----------------------------------------------------------------------------
 //
-// Copyright (C) 2004 by Sonic Team Jr.
+// Copyright (C) 2004-2018 by Sonic Team Jr.
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License
diff --git a/src/sdl12/SRB2DC/dchelp.c b/src/sdl12/SRB2DC/dchelp.c
index 5fdf04bc28f47d2ec005336ffbc6f70f8fd95b5c..1468baa8b8bbc6da300828dd584a6d016f108494 100644
--- a/src/sdl12/SRB2DC/dchelp.c
+++ b/src/sdl12/SRB2DC/dchelp.c
@@ -1,7 +1,7 @@
 // Emacs style mode select   -*- C++ -*-
 //-----------------------------------------------------------------------------
 //
-// Copyright (C) 2006 by Sonic Team Jr.
+// Copyright (C) 2006-2018 by Sonic Team Jr.
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License
diff --git a/src/sdl12/SRB2DC/dchelp.h b/src/sdl12/SRB2DC/dchelp.h
index 236f311103466caa95dc93a956ac2a8a9a15abc6..3647f9c8952a3d3adf94cdf60729e586e55ee369 100644
--- a/src/sdl12/SRB2DC/dchelp.h
+++ b/src/sdl12/SRB2DC/dchelp.h
@@ -1,7 +1,7 @@
 // Emacs style mode select   -*- C++ -*-
 //-----------------------------------------------------------------------------
 //
-// Copyright (C) 2006 by Sonic Team Jr.
+// Copyright (C) 2006-2018 by Sonic Team Jr.
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License
diff --git a/src/sdl12/SRB2DC/i_udp.c b/src/sdl12/SRB2DC/i_udp.c
index ec5e305fc5f3598e41cadb173ff1bcb5c4a31d55..cf7654c103e2a23303df1b3a769974099d879f97 100644
--- a/src/sdl12/SRB2DC/i_udp.c
+++ b/src/sdl12/SRB2DC/i_udp.c
@@ -1,7 +1,7 @@
 // Emacs style mode select   -*- C++ -*-
 //-----------------------------------------------------------------------------
 // Copyright (C) 1993-1996 by id Software, Inc.
-// Portions Copyright (C) 2005 by Sonic Team Jr.
+// Portions Copyright (C) 2005-2018 by Sonic Team Jr.
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License
diff --git a/src/sdl12/SRB2XBOX/xboxhelp.c b/src/sdl12/SRB2XBOX/xboxhelp.c
index 9de01712f9b5f03a66d8bb1bf3f8a26fe4be0817..05b6c5e68fd76adceb002fa7e63a01e4e3b2d8c6 100644
--- a/src/sdl12/SRB2XBOX/xboxhelp.c
+++ b/src/sdl12/SRB2XBOX/xboxhelp.c
@@ -1,7 +1,7 @@
 // Emacs style mode select   -*- C++ -*-
 //-----------------------------------------------------------------------------
 //
-// Copyright (C) 2004 by Sonic Team Jr.
+// Copyright (C) 2004-2018 by Sonic Team Jr.
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License