diff --git a/README.md b/README.md
index c791be3..aaf4c00 100644
--- a/README.md
+++ b/README.md
@@ -187,5 +187,8 @@ requires polyfills to work.
 LICENSE
 ---------
 
-Copyright 2011-2012 Bartek Szopka. Released under MIT License.
+Copyright 2011-2012 Bartek Szopka
+
+Released under the MIT and GPL Licenses.
+
 
diff --git a/js/impress.js b/js/impress.js
index 297ac2c..ca16de0 100644
--- a/js/impress.js
+++ b/js/impress.js
@@ -4,10 +4,11 @@
  * impress.js is a presentation tool based on the power of CSS3 transforms and transitions
  * in modern browsers and inspired by the idea behind prezi.com.
  *
- * MIT Licensed.
  *
  * Copyright 2011-2012 Bartek Szopka (@bartaz)
  *
+ * Released under the MIT and GPL Licenses.
+ *
  * ------------------------------------------------
  *  author:  Bartek Szopka
  *  version: 0.4pre (in development)