diff --git a/readme.md b/readme.md
index 6a0be45..6e4fd13 100644
--- a/readme.md
+++ b/readme.md
@@ -80,4 +80,8 @@ table=100
 
 ## TIPS
 
-- `systemd-cgls` to see the cgroup hierarchical tree.
\ No newline at end of file
+- `systemd-cgls` to see the cgroup hierarchical tree.
+
+## Licences
+
+cgproxy is licenced under [![License: GPL v3](https://img.shields.io/badge/License-GPL%20v2-blue.svg)](https://www.gnu.org/licenses/gpl-2.0)