diff --git a/Dockerfile b/Dockerfile
index 0cbd466..fd327f5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM ruby:2.4.3
 
-ENV BUILD_PACKAGES="apt-utils build-essential curl less nodejs sudo wget zsh libmysqlclient-dev ruby-serialport libserialport-dev"
+ENV BUILD_PACKAGES="apt-utils build-essential curl less nodejs sudo wget zsh libmysqlclient-dev libserialport-dev cron"
 
 # throw errors if Gemfile has been modified since Gemfile.lock
 RUN \
@@ -17,4 +17,4 @@ RUN \
 
 COPY . .
 
-CMD ["cd /usr/src/app && ruby smartmeter.rb"]
+CMD ["ruby ./smartmeter.rb"]
diff --git a/docker-compose.yml b/docker-compose.yml
index 23dd179..1ce3989 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,14 +2,18 @@ version: '3'
 services:
   db:
     container_name: smartmeter_db
+    restart: unless-stopped
     image: mysql 
     environment:
       MYSQL_ROOT_PASSWORD: rootme
       MYSQL_DATABASE: smartmeter
   smartmeter:
     container_name: smartmeter
+    restart: unless-stopped
     build: .
     command: 'ruby ./smartmeter.rb'
+    devices:
+      - "/dev/ttyUSB0:/dev/ttyUSB0"
     volumes:
       - .:/usr/src/app
     depends_on: