Homekit issue with Command Line Cover

I use the Command Line cover configuration option for running URLs on Home Assistant.

An example is this:

cover:

The integration works fine in HASSIO, and I can raise or lower the door and stop it with the buttons in HomeAssistant.

The issue comes when using it with Siri and the Homekit integration.
Homekit doesn’t seem to understand the STOP command. I can say “Open Garage Door One” and “Close Garage Door One”, and those work fine. But, I can’t say “Stop Garage Door One”. Siri has no idea what to do and says “I can’t do that for you”.

Is there anything special that needs to be done to give siri this skill?