diff --git a/Dockerfile b/Dockerfile
index b2cbacc..9d47548 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,6 +25,9 @@ FROM busybox:1.36.0
 
 COPY --from=builder /build/dumb-init /build/affy/target/release/affy /bin/
 
+RUN mkdir /data && \
+    chown -R www-data:www-data /data
+
 WORKDIR /data
 
 ENV TZ=Europe/Brussels