diff --git a/manifests/icinga2/agent.pp b/manifests/icinga2/agent.pp
index 8ae2aab..486929d 100644
--- a/manifests/icinga2/agent.pp
+++ b/manifests/icinga2/agent.pp
@@ -1,49 +1,49 @@
 # Icinga2 agent configuration
 class profile::icinga2::agent {
   $features = hiera('icinga2::features')
   $icinga2_network = hiera('icinga2::network')
   $parent_zone = hiera('icinga2::parent_zone')
   $parent_endpoints = hiera('icinga2::parent_endpoints')
 
   include profile::icinga2::apt_config
 
   class {'::icinga2':
     confd    => false,
     features => $features,
   }
 
   class { '::icinga2::feature::api':
     accept_config   => true,
     accept_commands => true,
     endpoints       => {},
     zones           => {
-      ZoneName => {
+      'ZoneName' => {
         endpoints => ['NodeName'],
         parent    => $parent_zone,
       },
     },
   }
 
   create_resources('::icinga2::object::endpoint', $parent_endpoints)
   ::icinga2::object::zone {$parent_zone:
     endpoints => $parent_endpoints,
   }
 
   @@::icinga2::object::endpoint {$::fqdn:
     target => "/etc/icinga2/zones.d/${::fqdn}.conf",
   }
 
   @@::icinga2::object::zone {$::fqdn:
     endpoints => [$::fqdn],
     target    => "/etc/icinga2/zones.d/${::fqdn}.conf",
   }
 
   @@::icinga2::object::host {$::fqdn:
     address => ip_for_network($icinga2_network),
     target  => "/etc/icinga2/zones.d/${::fqdn}.conf",
   }
 
   icinga2::object::zone { 'global-templates':
     global => true,
   }
 }