diff --git a/README.md b/README.md
index 7540392..918da2e 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ Based on the official Docker images from Elastic:
 
 Other available stack variants:
 
+* [`tls`](https://github.com/deviantony/docker-elk/tree/tls): TLS encryption enabled in Elasticsearch. _Regularly rebased onto `master`_
 * [`searchguard`](https://github.com/deviantony/docker-elk/tree/searchguard): Search Guard support
 
 ## Contents