diff --git a/Dockerfile b/Dockerfile
index 3a96222..c1ce59e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,6 +20,7 @@ COPY --from=pybuilder /code /dist
 # copy the frontend static files from the builder
 COPY --from=builder ./dist /dist/
 WORKDIR /dist
+# create dir for save
 RUN mkdir save
 EXPOSE 5001