diff --git a/homeassistant/components/wake_on_lan/services.yaml b/homeassistant/components/wake_on_lan/services.yaml
index 48d3df5c4f9..e7c048daf64 100644
--- a/homeassistant/components/wake_on_lan/services.yaml
+++ b/homeassistant/components/wake_on_lan/services.yaml
@@ -15,3 +15,4 @@ send_magic_packet:
         number:
           min: 1
           max: 65535
+          mode: "box"