Possible antenna elevation issue

I’m not sure if this is an issue with presenting values or with the value itself, but my antenna is configured to be 5 feet above ground level. However, the ADS-B statistics page states that it is 5 feet above sea level. I’ve included screenshots of the area where this is configured and also displayed. My elevation here is approximately 2,240 feet so the antenna is definitely more than 5 feet above sea level. I just want to make sure this information is accurate for MLAT since I figure an error of almost half a mile in elevation would affect the accuracy of those positions.

What’s displayed:
https://dl.dropboxusercontent.com/u/37451763/antenna_display.png

What’s configured:
https://dl.dropboxusercontent.com/u/37451763/antenna_configuration.png

It is a display bug, the data is stored/used correctly by mlat.