diff --git a/global/overlay/etc/puppet/modules/soc/manifests/rsyslog/client.pp b/global/overlay/etc/puppet/modules/soc/manifests/rsyslog/client.pp
index 25b6c85..31ec8a5 100644
--- a/global/overlay/etc/puppet/modules/soc/manifests/rsyslog/client.pp
+++ b/global/overlay/etc/puppet/modules/soc/manifests/rsyslog/client.pp
@@ -3,6 +3,7 @@ class soc::rsyslog::client(
   $daily_rotation = true,
   $syslog_servers = lookup(syslog_servers, undef, undef, []),
   $relp_syslog_servers = lookup(relp_syslog_servers, undef, undef, ['89.45.237.247:2514']),
+  $gelf_graylog_servers = lookup(gelf_graylog_servers, undef, undef, []),
   $syslog_enable_remote = lookup('syslog_enable_remote', undef, undef, 'true'),
 ) {
   # Install rsyslog packages