diff --git a/man/backupninja.conf.5 b/man/backupninja.conf.5
index b4f56023dabd92a611a7dbde53d03ae856c45639..467cd1eb251c5451ed73acd96e971dca1693304d 100644
--- a/man/backupninja.conf.5
+++ b/man/backupninja.conf.5
@@ -66,6 +66,10 @@ The path of the logfile.
 .B configdirectory
 The directory where all the backup action configuration files live.
 
+.TP
+.B admingroup
+Administration user group that is allowed to read/write configuration files in \fBconfigdirectory\fB.
+
 .TP
 .B scriptdirectory
 Where backupninja handler scripts are found
@@ -117,6 +121,8 @@ logfile = /var/log/backupninja.log
 .br
 configdirectory = /etc/backup.d
 .br
+admingroup = root
+.br
 scriptdirectory = /usr/share/backupninja
 .br
 usecolors = yes