diff --git a/manifests/prometheus/server.pp b/manifests/prometheus/server.pp
index 2eeabfd..7814221 100644
--- a/manifests/prometheus/server.pp
+++ b/manifests/prometheus/server.pp
@@ -1,109 +1,109 @@
 # Configure the Prometheus server
 class profile::prometheus::server {
   include profile::prometheus::apt_config
 
   $config_dir = '/etc/prometheus'
   $config_file = "${config_dir}/prometheus.yml"
   $defaults_file = '/etc/default/prometheus'
   $scrape_configs_dirname = 'exported-configs'
   $scrape_configs_dir = "${config_dir}/${scrape_configs_dirname}"
 
-  $global_config = {}
+  $global_config = lookup('prometheus::server::config::global', Hash)
   $rule_files = []
   $scrape_configs = []
   $remote_read = []
   $remote_write = []
   $alert_relabel_configs = []
   $alertmanagers = []
 
   $full_config = {
     global         => $global_config,
     rule_files     => $rule_files,
     scrape_configs => $scrape_configs + [
       {
         job_name        => 'exported',
         file_sd_configs => [
           {
             files => [
               "${scrape_configs_dirname}/*.yaml",
             ]
           },
         ]
       },
     ],
     alerting       => {
       alert_relabel_configs => $alert_relabel_configs,
       alertmanagers         => $alertmanagers,
     },
     remote_read    => $remote_read,
     remote_write   => $remote_write,
   }
 
   $lookup_defaults_config = lookup('prometheus::server::defaults_config', Hash)
   $listen_network = lookup('prometheus::server::listen_network', Optional[String], 'first', undef)
   $listen_address = lookup('prometheus::server::listen_address', Optional[String], 'first', undef)
   $actual_listen_address = pick($listen_address, ip_for_network($listen_network))
   $listen_port = lookup('prometheus::server::listen_port')
   $target = "${actual_listen_address}:${listen_port}"
 
   $defaults_config = deep_merge(
     $lookup_defaults_config,
     {
       web => {
         listen_address => $target,
       },
     }
   )
 
   profile::prometheus::export_scrape_config {'prometheus':
     target => $target,
   }
 
   package {'prometheus':
     ensure => latest,
     notify => Service['prometheus'],
   }
 
   service {'prometheus':
     ensure  => 'running',
     enable  => true,
     require => [
       Package['prometheus'],
       File[$config_file],
       File[$defaults_file]
     ],
   }
 
   file {$config_file:
     ensure  => 'present',
     owner   => 'root',
     group   => 'root',
     mode    => '0644',
     require => Package['prometheus'],
     notify  => Service['prometheus'],
     content => inline_yaml($full_config),
   }
 
   file {$scrape_configs_dir:
     ensure  => 'directory',
     owner   => 'root',
     group   => 'root',
     mode    => '0644',
     require => Package['prometheus'],
     recurse => true,
     purge   => true,
   }
 
   # Uses $defaults_config
   file {$defaults_file:
     ensure  => 'present',
     owner   => 'root',
     group   => 'root',
     mode    => '0644',
     content => template('profile/prometheus/server/prometheus.defaults.erb'),
     require => Package['prometheus'],
     notify  => Service['prometheus'],
   }
 
   Profile::Prometheus::Scrape_config <<| prometheus_server == $trusted['certname'] |>>
 }