diff --git a/Bindings/usb/realtek,rts5411.yaml b/Bindings/usb/realtek,rts5411.yaml
index 0874fc2..6577a61 100644
--- a/Bindings/usb/realtek,rts5411.yaml
+++ b/Bindings/usb/realtek,rts5411.yaml
@@ -65,6 +65,7 @@
     description: The hard wired USB devices
     type: object
     $ref: /schemas/usb/usb-device.yaml
+    additionalProperties: true
 
 required:
   - peer-hub