diff --git a/manifests/server/nagios.pp b/manifests/server/nagios.pp
index 6dd9aff..8778ca1 100644
--- a/manifests/server/nagios.pp
+++ b/manifests/server/nagios.pp
@@ -7,7 +7,7 @@ class confdroid_nagios::server::nagios (
 
 ) inherits confdroid_nagios::params {
   if $ng_nagios_server == $fqdn {
-    @@nagios_host { 'localhost':
+    @@nagios_host { "localhost_${fqdn}":
       ensure              => $ng_ping_ensure,
       alias               => 'localhost',
       address             => '127.0.0.1',