diff --git a/stacks/smokeping/docker-compose.yml b/stacks/smokeping/docker-compose.yml
index 4d3d2db..c00d18e 100644
--- a/stacks/smokeping/docker-compose.yml
+++ b/stacks/smokeping/docker-compose.yml
@@ -15,6 +15,7 @@ services:
     networks:
       - web
     labels:
+      - "org.opencontainers.image.source=https://gitea.ghost.tel/knight/docker-stacks"
       - "com.centurylinklabs.watchtower.enable=true"
       - "traefik.enable=true"
       - "traefik.http.routers.smokeping.entrypoints=https"