diff --git a/doc/license b/doc/license
index 82f086f..8dc44bc 100644
--- a/doc/license
+++ b/doc/license
@@ -1 +1,4 @@
-License is GPLv2/GPLv3, see doc/GPLv2 and doc/GPLv3 respectively.
+gitstats license is GPLv2/GPLv3, see doc/GPLv2 and doc/GPLv3 respectively.
+
+sortable.js, contained in gitstats, is licensed under the MIT license. See the
+file itself for details.