diff --git a/beadm.1 b/beadm.1
index 9b3a711..c4bd88a 100644
--- a/beadm.1
+++ b/beadm.1
@@ -101,6 +101,7 @@ will automatically unmount without confirmation.
 .Op Fl a | Fl D
 .Pp
 Displays all boot environments.
+The Active field indicates whether the boot environment is active now (N); active on reboot (R); or both (NR).
 .PP
 If
 .Fl a