diff --git a/man5/proc.5 b/man5/proc.5
index 5d626d5a9..7d22aa85f 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -6659,8 +6659,10 @@ of thing that needs to be updated very often.
 .BR dmesg (1),
 .BR find (1),
 .BR free (1),
+.BR htop (1),
 .BR init (1),
 .BR ps (1),
+.BR pstree (1),
 .BR tr (1),
 .BR uptime (1),
 .BR chroot (2),