diff --git a/Dockerfile b/Dockerfile
index e63cdea..c974d6a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -46,6 +46,7 @@ ENV TZ="UTC"
 ENV COLOR="blue-grey"
 ENV HS_SERVER=http://localhost/
 ENV KEY=""
+ENV DATA_DIRECTORY=/data
 # ENV SCRIPT_NAME=/
 ENV DOMAIN_NAME=http://localhost
 ENV AUTH_TYPE=""
@@ -81,4 +82,4 @@ EXPOSE 5000/tcp
 ENTRYPOINT ["/app/entrypoint.sh"]
 
 # Temporarily reduce to 1 workerd
-CMD gunicorn -w 1 -b 0.0.0.0:5000 server:app
\ No newline at end of file
+CMD gunicorn -w 1 -b 0.0.0.0:5000 server:app