diff --git a/content/posts/home-automation-at-school/index.md b/content/posts/home-automation-at-school/index.md
index 9d81da7..8c0e9b9 100644
--- a/content/posts/home-automation-at-school/index.md
+++ b/content/posts/home-automation-at-school/index.md
@@ -282,7 +282,7 @@ I'm not sure which is the best one at this stage, but refer to [this](https://gi
 I have configured on my VPS a docker image that accepts reverse SSH tunnelling, authorized only to the key of the HA addon.
 From my `docker-compose.yml`:
 
-```json
+```yaml
   homeassistant:
     image: "docker.io/panubo/sshd"
     container_name: homeassistant