Unable to disable daemon using Systemd

I've tried disabling MPD (Music Player Daemon) using Systemd: sudo systemctl disable mpd sudo systemctl status mpd mpd.service - Music Player Daemon Loaded: loaded (/lib/systemd/system/mpd.service; disabled; vendor preset: disabled) Active: inactive (dead) But MPD runs at every boot regardless. ps aux | grep mpd user 1691 0.1 0.8 995424 33108 ? Ssl 09:07 0:00 mpd user 2154 0.0 0.0 14216 2464 pts/5 S+ 09:17 0:00 grep --color=auto mpd How can I disable MPD from running at boot?