diff --git a/admin-guide/puppet/hiera.md b/admin-guide/puppet/hiera.md
index e4455f07..d27df42c 100644
--- a/admin-guide/puppet/hiera.md
+++ b/admin-guide/puppet/hiera.md
@@ -124,6 +124,12 @@ block: >
 #
 ```
 
+Alternatively if you already have docker installed you can use our container to encrypt a string 
+
+```bash
+# docker run -it container.psi.ch/docker/containers/eyaml-docker eyaml encrypt --pkcs7-public-key=/cert.pub -s {DataStringToEncrypt}
+```
+
 and place either the string or the block at the required place in your Hiera YAML.
 
 # Hiera Variable Interpolation