diff --git a/Dockerfile b/Dockerfile
index 8c0758b..122854d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1 +1,5 @@
 FROM mahuntington/student:zsh
+
+WORKDIR /home/student
+
+CMD ["sudo", "pg_ctlcluster", "15", "main", "start"]