diff --git a/README.md b/README.md
index 3896035..761e65d 100644
--- a/README.md
+++ b/README.md
@@ -47,3 +47,20 @@ $authmgr_admin_ipranges = array(
     '127.0.0.0/8',
 );
 ```
+
+License
+-------
+Copyright 2013 Nicholas Waller (code@nicwaller.com)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.