diff --git a/doc/bgpd.8 b/doc/bgpd.8
index 8daaefa..1a873b4 100644
--- a/doc/bgpd.8
+++ b/doc/bgpd.8
@@ -6,7 +6,7 @@
 .SH SYNOPSIS
 .B bgpd
 [
-.B \-dhrv
+.B \-dhrSv
 ] [
 .B \-f
 .I config-file
@@ -74,6 +74,9 @@
 \fB\-r\fR, \fB\-\-retain\fR 
 When the program terminates, retain routes added by \fBbgpd\fR.
 .TP
+\fB\-S\fR, \fB\-\-skip_runas\fR 
+Skip setting the process effective user and group.
+.TP
 \fB\-v\fR, \fB\-\-version\fR
 Print the version and exit.
 .SH FILES