diff --git a/backend/Dockerfile b/backend/Dockerfile
index d5864f2..5074e7d 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -6,5 +6,4 @@ RUN yarn install
 
 COPY src src/
 COPY data data/
-RUN ls
 CMD ["node", "src/index.js"]
diff --git a/backend/src/app.js b/backend/src/app.js
index e9bcbc9..fbbe8b1 100644
--- a/backend/src/app.js
+++ b/backend/src/app.js
@@ -14,9 +14,8 @@ const io = socketIO(server);
 
 app.get('/state', (req, res) => res.send('<pre>' + JSON.stringify(state) + '</pre>'));
 
-process.on('SIGINT', function() {
-    process.exit();
-});
+process.on('SIGINT', () => process.exit());
+process.on('SIGTERM', () => process.exit());
 
 module.exports = {
     app, server, io