diff --git a/roles/mailserver_monitoring/templates/zones.d/master/services/mailserver.conf.j2 b/roles/mailserver_monitoring/templates/zones.d/master/services/mailserver.conf.j2
index 23fc4cf..f7f16ff 100644
--- a/roles/mailserver_monitoring/templates/zones.d/master/services/mailserver.conf.j2
+++ b/roles/mailserver_monitoring/templates/zones.d/master/services/mailserver.conf.j2
@@ -3,6 +3,7 @@
 apply Service "smtp" {
     import "generic-service"
     check_command = "smtp"
+    command_endpoint = host.name
     assign where host.name == "{{ inventory_hostname }}"
 }