diff --git a/lib/natural/tokenizers/tokenizer_case.js b/lib/natural/tokenizers/tokenizer_case.js
index d7677add4..f790674d3 100644
--- a/lib/natural/tokenizers/tokenizer_case.js
+++ b/lib/natural/tokenizers/tokenizer_case.js
@@ -1,5 +1,5 @@
 /*
- Copyright (c) 2011, Chris Umbel
+ Copyright (c) 2011, Chris Umbel, Alex Langberg
 
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
diff --git a/spec/tokenizer_case_spec.js b/spec/tokenizer_case_spec.js
index 684599799..b0a8b119c 100644
--- a/spec/tokenizer_case_spec.js
+++ b/spec/tokenizer_case_spec.js
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2011, Chris Umbel
+Copyright (c) 2011, Chris Umbel, Alex Langberg, Martijn de Boer
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal