diff --git a/manifests/server/service.pp b/manifests/server/service.pp
index e898e8f..8c0f1dc 100644
--- a/manifests/server/service.pp
+++ b/manifests/server/service.pp
@@ -41,7 +41,7 @@ class cd_nagios::server::service (
       enable      => true,
     }
 
-    @@nagios_host { 'localhost':
+    @@nagios_host { "localhost_${::hostname}":
       ensure              =>  $ng_ping_ensure,
       alias               =>  'localhost',
       address             =>  '127.0.0.1',