diff --git a/Dockerfile b/Dockerfile
index 0ac8514..eb7d777 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,5 @@
 FROM cloudron/base:2.0.0@sha256:f9fea80513aa7c92fe2e7bf3978b54c8ac5222f47a9a32a7f8833edf0eb5a4f4
 
-RUN mkdir -p /app/data/runtime /app/data/config && \
-    chown -R cloudron:cloudron /app/data/runtime /app/data/config
-
-WORKDIR /app/data
-
 # install Prometheus
 RUN mkdir -p /usr/local/bin/prometheus && \
     cd /usr/local/bin && \
diff --git a/start.sh b/start.sh
index b59d3db..e247c28 100755
--- a/start.sh
+++ b/start.sh
@@ -2,6 +2,10 @@
 
 set -eu
 
+mkdir -p /app/data/runtime /app/data/config
+
+chown -R cloudron:cloudron /app/data
+
 echo "=> Starting Prometheus"
 cd /usr/local/bin/prometheus
 exec /usr/local/bin/gosu cloudron:cloudron ./prometheus --config.file=/app/data/config/prometheus.yml --storage.tsdb.path=/app/data/runtime