diff -up at-3.1.23/atd.8.in.document-n at-3.1.23/atd.8.in
--- at-3.1.23/atd.8.in.document-n	2018-08-27 14:49:09.824182482 +0200
+++ at-3.1.23/atd.8.in	2018-08-27 14:50:34.625518639 +0200
@@ -9,6 +9,7 @@ atd \- run jobs queued for later executi
 .IR batch_interval ]
 .RB [ \-d ]
 .RB [ \-f ]
+.RB [ \-n ]
 .RB [ \-s ]
 .SH DESCRIPTION
 .B atd
@@ -44,6 +45,10 @@ in the foreground.
 Process the at/batch queue only once.
 This is primarily of use for compatibility with old versions of
 .BR at ;
+.B \-n
+Append the hostname of the system to the subject of the e-mails sent by
+.BR atd .
+.TP 8
 .B "atd \-s"
 is equivalent to the old
 .B atrun