diff --git a/LICENSE b/LICENSE
index d7a01da..89232b5 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2010-2013 David Majda
+Copyright (c) 2010-2015 David Majda
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation
diff --git a/Makefile b/Makefile
index 29bbf97..97bd487 100644
--- a/Makefile
+++ b/Makefile
@@ -75,7 +75,7 @@ browser:
 	echo ' *'                                                                          >> $(BROWSER_FILE_DEV)
 	echo ' * http://pegjs.org/'                                                        >> $(BROWSER_FILE_DEV)
 	echo ' *'                                                                          >> $(BROWSER_FILE_DEV)
-	echo ' * Copyright (c) 2010-2013 David Majda'                                      >> $(BROWSER_FILE_DEV)
+	echo ' * Copyright (c) 2010-2015 David Majda'                                      >> $(BROWSER_FILE_DEV)
 	echo ' * Licensed under the MIT license.'                                          >> $(BROWSER_FILE_DEV)
 	echo ' */'                                                                         >> $(BROWSER_FILE_DEV)
 	echo 'var PEG = (function(undefined) {'                                            >> $(BROWSER_FILE_DEV)