diff --git a/README.md b/README.md
index 544ba2e..96bccaa 100644
--- a/README.md
+++ b/README.md
@@ -7,4 +7,6 @@ Change configuration in docker-compose.yml to update passwords for MySQL/RabbitM
 docker-compose up -d
 ```
 
+Remember to use `docker cp` to copy the configuration file and certificates off the container.
+
 Still WIP