diff --git a/Dockerfile b/Dockerfile
index d216c27..284d0e2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,6 @@ RUN npm run build  --verbose
 
 FROM nginx:alpine
 COPY --from=build /app/build/ /usr/share/nginx/html
-RUN chmod 755 /usr/share/nginx/html/ -rf
+RUN chmod 755 /usr/share/nginx/html/ -R
 EXPOSE 80
 ENTRYPOINT ["sh", "-c", "cd /usr/share/nginx/html/ && nginx -g 'daemon off;'"]
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