diff --git a/README.md b/README.md
index 28fb123..6b7bf70 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,8 @@ This repository is a copy of [coop-cloud/mastodon](https://git.autonomic.zone/co
 
 ## Secrets setup
 
+> WARNING: the abra secret insertion doesn't work at all! You have to use `docker secret create`. We'll fix this soon
+
 Because Mastodon expects secrets generated by specific tools, we don't support that in `abra` yet. However, you can run these commands yourself using the underlying Docker CLI. You can then load them in as secrets to the swarm using `abra` though and then they will be picked up on the deployment.
 
 First, generate the `SECRET_KEY_BASE` and `OTP_SECRET` and store them in your local shell environment, you'll need them for subsequent commands.