Sensor showing up in "home" zone

I have a sensor based off of the same MQTT messages as my device_tracker, so it happens to have JSON attributes in its payload for latitude and longitude. I didn’t expect this, but the sensor shows up on the Map page in Home Assistant (in addition to the device_tracker). Not only that, but the sensor shows up even when the position puts it squarely in the “home” zone.

Is there any way I can prevent an entity from showing up on the map page? The device tracker already shows up (and hides itself when home), there’s no need for the sensor with identical positioning.