diff --git a/README.md b/README.md
index 9e72e2b..f0d4012 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@
 - put real certs in ./letsencrypt
 - remove "1000:443" mapping
 - uncomment 80, 443 port mappings
-- put real password for postgres
+- put real password for postgres in `POSTGRES_PASSWORD` and `DATABASE_URL`
 
 # RUN
 `docker-compose build`
diff --git a/docker-compose.yml b/docker-compose.yml
index 3189202..6233670 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -40,4 +40,9 @@ services:
         DATABASE_HOST: "db"
         DATABASE_PORT_NUMBER: "5432"
 
-
+  martin:
+    image: "urbica/martin:pr-360"
+    environment:
+      DATABASE_URL: "postgres://postgres:toCHANGE@db/spatial" # TODO: change to real password
+    ports:
+      - "3000:3000"