diff --git a/Dockerfile b/Dockerfile
index b4478d1..3e4468d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,9 @@
 FROM node:10-jessie as node
 #If encounter Invalid cross-device error -run on host 'echo N | sudo tee /sys/module/overlay/parameters/metacopy'
 COPY ui /app/ui
-RUN cd /app/ui && yarn && yarn build
+WORKDIR /app/ui
+RUN yarn
+RUN yarn build
 
 FROM rust:1.33 as rust
 COPY server /app/server