diff --git a/source/hassio/zwave.markdown b/source/hassio/zwave.markdown
index 385c3f9d6e7..5d96ecfd4a2 100644
--- a/source/hassio/zwave.markdown
+++ b/source/hassio/zwave.markdown
@@ -23,7 +23,7 @@ dtoverlay=pi3-miniuart-bt
 
 For very special device, the `/dev/ttyAMA0` will not detect by udev and not mapped with docker. So you need explicit set this device for mapping to Home-Assistant. Execute this command on ssh add-on:
 ```bash
-$ curl -d '{"devices": "/dev/ttyAMA0"}' http://172.17.0.2/homeassistant/options
+$ curl -d '{"devices": ["/dev/ttyAMA0"]}' http://172.17.0.2/homeassistant/options
 ```
 
 ### HUSBZB-1: