diff --git a/dockermon/docker-compose.yml b/dockermon/docker-compose.yml
index b9e7286..c6f42e2 100644
--- a/dockermon/docker-compose.yml
+++ b/dockermon/docker-compose.yml
@@ -1,3 +1,6 @@
+version: '2'
+
+services:  
   docker_mon:
     image: philhawthorne/ha-dockermon