diff --git a/Dockerfile b/Dockerfile
index 3c5f70a..dbce5c8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
FROM node:10
WORKDIR /usr/src/app
COPY ./ ./
-RUN sed -i '1i\' ./public/index.html
+RUN sed -i '1i\' ./public/index.html
RUN npm install
EXPOSE 8081
CMD [ "node", "app.js" ]