diff --git a/libsndio/sndio.7 b/libsndio/sndio.7
index 576c4ec..0354f2b 100644
--- a/libsndio/sndio.7
+++ b/libsndio/sndio.7
@@ -214,6 +214,9 @@ Audio devices.
 MIDI ports.
 .El
 .Sh SEE ALSO
+.Xr aucat 1 ,
+.Xr midicat 1 ,
+.Xr sndioctl 1 ,
 .Xr mio_open 3 ,
 .Xr sio_open 3 ,
 .Xr sioctl_open 3 ,