diff --git a/driver/main.c b/driver/main.c
index c07fb7a62..134a08f5d 100644
--- a/driver/main.c
+++ b/driver/main.c
@@ -1,6 +1,6 @@
+const char COPYRIGHT[] =
+  "Copyright (c) 2000-2021 Stephen Williams (steve@icarus.com)";
 /*
- * Copyright (c) 2000-2021 Stephen Williams (steve@icarus.com)
- *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
  *    General Public License as published by the Free Software
@@ -1308,7 +1308,7 @@ int main(int argc, char **argv)
 
       if (version_flag || verbose_flag) {
 	    printf("Icarus Verilog version " VERSION " (" VERSION_TAG ")\n\n");
-	    printf("Copyright 1998-2020 Stephen Williams\n\n");
+	    printf("%s\n\n", COPYRIGHT);
 	    puts(NOTICE);
       }
 
diff --git a/ivlpp/main.c b/ivlpp/main.c
index 61f7508ed..3817cdd65 100644
--- a/ivlpp/main.c
+++ b/ivlpp/main.c
@@ -1,5 +1,5 @@
 const char COPYRIGHT[] =
-          "Copyright (c) 1999-2020 Stephen Williams (steve@icarus.com)";
+  "Copyright (c) 1999-2021 Stephen Williams (steve@icarus.com)";
 /*
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
@@ -360,7 +360,7 @@ int main(int argc, char*argv[])
 	  case 'V':
 	    fprintf(stdout, "Icarus Verilog Preprocessor version "
 		    VERSION " (" VERSION_TAG ")\n\n");
-	    fprintf(stdout, "%s\n", COPYRIGHT);
+	    fprintf(stdout, "%s\n\n", COPYRIGHT);
 	    fputs(NOTICE, stdout);
 	    return 0;
 
diff --git a/main.cc b/main.cc
index 8cdd571df..510921d03 100644
--- a/main.cc
+++ b/main.cc
@@ -1,6 +1,5 @@
 const char COPYRIGHT[] =
-          "Copyright (c) 1998-2021 Stephen Williams (steve@icarus.com)";
-
+  "Copyright (c) 1998-2021 Stephen Williams (steve@icarus.com)";
 /*
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
diff --git a/tgt-vlog95/vlog95.c b/tgt-vlog95/vlog95.c
index c8d236214..208821b16 100644
--- a/tgt-vlog95/vlog95.c
+++ b/tgt-vlog95/vlog95.c
@@ -1,6 +1,6 @@
+#define COPYRIGHT \
+  "Copyright (c) 2010-2021 Cary R. (cygcary@yahoo.com)"
 /*
- * Copyright (C) 2010-2020 Cary R. (cygcary@yahoo.com)
- *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
@@ -30,7 +30,7 @@
 
 static const char*version_string =
 "Icarus Verilog VLOG95 Code Generator " VERSION " (" VERSION_TAG ")\n\n"
-"Copyright (C) 2010-2020 Cary R. (cygcary@yahoo.com)\n\n"
+COPYRIGHT "\n\n"
 "  This program is free software; you can redistribute it and/or modify\n"
 "  it under the terms of the GNU General Public License as published by\n"
 "  the Free Software Foundation; either version 2 of the License, or\n"
diff --git a/tgt-vvp/vvp.c b/tgt-vvp/vvp.c
index 51680e27c..1856c9be3 100644
--- a/tgt-vvp/vvp.c
+++ b/tgt-vvp/vvp.c
@@ -1,6 +1,6 @@
+#define COPYRIGHT \
+  "Copyright (c) 2001-2021 Stephen Williams (steve@icarus.com)"
 /*
- * Copyright (c) 2001-2020 Stephen Williams (steve@icarus.com)
- *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
  *    General Public License as published by the Free Software
@@ -28,7 +28,7 @@
 
 static const char*version_string =
 "Icarus Verilog VVP Code Generator " VERSION " (" VERSION_TAG ")\n\n"
-"Copyright (c) 2001-2020 Stephen Williams (steve@icarus.com)\n\n"
+COPYRIGHT "\n\n"
 "  This program is free software; you can redistribute it and/or modify\n"
 "  it under the terms of the GNU General Public License as published by\n"
 "  the Free Software Foundation; either version 2 of the License, or\n"
diff --git a/vhdlpp/main.cc b/vhdlpp/main.cc
index e5640caf9..568c72cae 100644
--- a/vhdlpp/main.cc
+++ b/vhdlpp/main.cc
@@ -1,6 +1,6 @@
 
 const char COPYRIGHT[] =
-      "Copyright (c) 2011-2015 Stephen Williams (steve@icarus.com)\n"
+      "Copyright (c) 2011-2021 Stephen Williams (steve@icarus.com)\n"
       "Copyright CERN 2012 / Stephen Williams (steve@icarus.com)";
 /*
  *    This source code is free software; you can redistribute it
diff --git a/vvp/main.cc b/vvp/main.cc
index 4d7d85fbb..034354e94 100644
--- a/vvp/main.cc
+++ b/vvp/main.cc
@@ -1,6 +1,6 @@
+const char COPYRIGHT[] =
+  "Copyright (c) 2001-2021 Stephen Williams (steve@icarus.com)";
 /*
- * Copyright (c) 2001-2021 Stephen Williams (steve@icarus.com)
- *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
  *    General Public License as published by the Free Software
@@ -341,7 +341,7 @@ int main(int argc, char*argv[])
       if (version_flag) {
 	    fprintf(stderr, "Icarus Verilog runtime version " VERSION " ("
 	                    VERSION_TAG ")\n\n");
-	    fprintf(stderr, "Copyright 1998-2020 Stephen Williams\n\n");
+	    fprintf(stderr, "%s\n\n", COPYRIGHT);
 	    fprintf(stderr,
 "  This program is free software; you can redistribute it and/or modify\n"
 "  it under the terms of the GNU General Public License as published by\n"