diff --git a/tasks/config/licenses.js b/tasks/config/licenses.js
index 97731e063da1d..c43499364018f 100644
--- a/tasks/config/licenses.js
+++ b/tasks/config/licenses.js
@@ -29,6 +29,7 @@ module.exports = function (grunt) {
         'MIT/X11',
         'OFL-1.1 AND MIT',
         'Public domain',
+        'Unlicense',
         'WTFPL',
         'new BSD, and MIT'
       ],