diff --git a/templates/puppet.conf.erb b/templates/puppet.conf.erb
index 51f7bf1..f0a7e2f 100644
--- a/templates/puppet.conf.erb
+++ b/templates/puppet.conf.erb
@@ -38,4 +38,4 @@ splay=true
 report=true
 server=<%= scope.lookupvar("puppetmaster_server") %>
 configtimeout=720
-environment=<% @domain.gsub('.lan','')
+environment=<% @domain.gsub('.(lan|mysportgroup.de)','')