diff --git a/matchMedia.addListener.js b/matchMedia.addListener.js
index 764232d..c97231a 100644
--- a/matchMedia.addListener.js
+++ b/matchMedia.addListener.js
@@ -1,4 +1,4 @@
-/*! matchMedia() polyfill addListener/removeListener extension. Author & copyright (c) 2012: Scott Jehl. Dual MIT/BSD license */
+/*! matchMedia() polyfill addListener/removeListener extension. Author & copyright (c) 2012: Scott Jehl. MIT license */
 (function(){
     // Bail out for browsers that have addListener support
     if (window.matchMedia && window.matchMedia('all').addListener) {
diff --git a/matchMedia.js b/matchMedia.js
index 0c0aff5..6ded3e7 100644
--- a/matchMedia.js
+++ b/matchMedia.js
@@ -1,4 +1,4 @@
-/*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas, David Knight. Dual MIT/BSD license */
+/*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas, David Knight. MIT license */
 
 window.matchMedia || (window.matchMedia = function() {
     "use strict";