HD Audio

I understand Kodi Krypton supports HD Audio passthrough. I am using Kodi on Android TV 5.1.1. When playing a video with DTS MA-HD track I can choose the HD audio track in the Kodi control and HD Audio is also shown in the Kodi metadata of the playing video. However, my Yamaha Receiver shows it as DTS, not as DTS MA-HD.
Hence I am unsure what is actually being played ?!