diff --git a/manifests/nagios/objects/add_servicegroup_rules.pp b/manifests/nagios/objects/add_servicegroup_rules.pp
index f564ce7..d4e0046 100644
--- a/manifests/nagios/objects/add_servicegroup_rules.pp
+++ b/manifests/nagios/objects/add_servicegroup_rules.pp
@@ -38,7 +38,7 @@ class confdroid_nagios::nagios::objects::add_servicegroup_rules (
     # add default servicegroup rules through defines and parameters
     confdroid_nagios::nagios::objects::add_servicegroups { $ng_servicegroup_name:
       ng_servicegroup_name  => $ng_servicegroup_name,
-      ng_servicegroup_alias => $ng_servicegroup_alias
+      ng_servicegroup_alias => $ng_servicegroup_alias,
     }
   }
 }