diff --git a/README.md b/README.md
index c4e118b..56fd41c 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ $ sudo docker run --detach --name wake-on-lan-service --host network \
 
 Or, with Docker Compose:
 
-```
+```yaml
 services:
   wake-on-lan-service:
     image: witten/wake-on-lan-service