diff --git a/README b/README
index c8baad6..6ad500e 100644
--- a/README
+++ b/README
@@ -32,7 +32,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGE.
 
 modified 2009 by Joerg Hoppe,
-modified 2015 by Olaf 'Rhialto' Seibert.
+modified 2015-2017 by Olaf 'Rhialto' Seibert.
 
 Files:
     macro11.c       Command line parsing and driving the passes.
diff --git a/macro11.c b/macro11.c
index 37b6d1c..f21de1d 100644
--- a/macro11.c
+++ b/macro11.c
@@ -83,7 +83,7 @@ static void print_version(
     fprintf(strm, "  Version %s\n", VERSIONSTR);
     fprintf(strm, "  Copyright 2001 Richard Krehbiel,\n");
     fprintf(strm, "  modified 2009 by Joerg Hoppe,\n");
-    fprintf(strm, "  modified 2015 by Olaf 'Rhialto' Seibert.\n");
+    fprintf(strm, "  modified 2015-2017 by Olaf 'Rhialto' Seibert.\n");
 }
 
 static void append_env(
diff --git a/mlb-rsx.c b/mlb-rsx.c
index ea24046..339b3f7 100644
--- a/mlb-rsx.c
+++ b/mlb-rsx.c
@@ -3,7 +3,7 @@
  */
 /*
 Copyright (c) 2001, Richard Krehbiel
-Copyright (c) 2015, Olaf Seibert
+Copyright (c) 2015, 2017, Olaf Seibert
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/mlb-rt11.c b/mlb-rt11.c
index e7ab993..4bdd146 100644
--- a/mlb-rt11.c
+++ b/mlb-rt11.c
@@ -2,6 +2,7 @@
 
 /*
 Copyright (c) 2001, Richard Krehbiel
+Copyright (c) 2017, Olaf Seibert
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without