diff --git a/content/self-host/install/_index.en.md b/content/self-host/install/_index.en.md
index 95358e0..7c7f7f8 100644
--- a/content/self-host/install/_index.en.md
+++ b/content/self-host/install/_index.en.md
@@ -265,3 +265,11 @@ If you want to prohibit users without the key from establishing non-encrypted co
 ```
 
 If you want to change the key, remove the `id_ed25519` and `id_ed25519.pub` files and restart `hbbs`/`hbbr`，`hbbs` will generate a new key pair.
+
+{{% notice note %}}
+If you are using docker-compose and keys don't exist, the start of containers will create differents keys in hbbs and hbbr folders.
+
+You could create keys manually in hbbs and copy them to hbbr, before starting the containers.
+
+Or you could stop hbbr container and copy the keys from hbbs to hbbr folder, and restart the container.
+{{% /notice %}}