diff --git a/manifests/params.pp b/manifests/params.pp
index af61c42..e54a3f7 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -423,6 +423,10 @@
 #   in Nagios. Default is '1'.
 # @param [String] ng_tac_cgi_hard_only Whether to show only HARD states in the 
 #   Tactical Overview in Nagios. Default is '0'.  
+# @param [String] ng_servicegroup_name The name of the default service group. 
+#   Default is 'linux-services'.
+# @param [String] ng_servicegroup_alias The alias of the default service group. 
+#   Default is 'Linux Services'.
 ################################################################################
 class confdroid_nagios::params (
 
@@ -455,6 +459,8 @@ class confdroid_nagios::params (
 # hostgroups
   String $ng_hostgroup_name             = 'linux-servers',
   String $ng_hostgroup_alias            = 'Linux Servers',
+  String $ng_servicegroup_name          = 'linux-services',
+  String $ng_servicegroup_alias         = 'Linux Services',
 
 # nagios.cfg
   String $ng_log_file                   = '/var/log/nagios/nagios.log',