diff --git a/lxc1/p2-apps/smtp-relay.yml b/lxc1/p2-apps/smtp-relay.yml
index 534b502..6f5c480 100644
--- a/lxc1/p2-apps/smtp-relay.yml
+++ b/lxc1/p2-apps/smtp-relay.yml
@@ -1,7 +1,7 @@
 services:
   smtp-relay:
     image: loganmarchione/docker-postfixrelay:latest
-    container_name: smtp_relay_node${SMTP_NODE}
+    container_name: smtp_relay_node${SMTP_NODE_ID}
     restart: always
     ports:
       - "2525:25"