diff --git a/source/_components/switch.netio.markdown b/source/_components/switch.netio.markdown
index b30efab2212..14b87570284 100644
--- a/source/_components/switch.netio.markdown
+++ b/source/_components/switch.netio.markdown
@@ -18,7 +18,7 @@ The `netio` switch platform allows you to control your [Netio](http://www.netio-
 
 To use Netio devices in your installation, add the following to your `configuration.yaml` file:
 
-```
+```yaml
 # Example configuration.yaml entry
 switch:
   - platform: netio