diff --git a/build.sh b/build.sh
index 19124f4..cde2dda 100644
--- a/build.sh
+++ b/build.sh
@@ -2,6 +2,7 @@
 base=$(cd "$(dirname "$0")";pwd)
 cd $base
 docker run -it --rm --name buildOpenRenamer --user ${UID} -v $base/openRenamerFront:/opt/front node:lts-buster-slim  bash -c "cd /opt/front &&   yarn --registry https://registry.npmmirror.com && yarn build"
+docker run -it --rm --name buildOpenRenamer -v $base/openRenamerBackend:/app node:lts-buster-slim  bash -c "cd /app &&   npm config set registry=https://registry.npmmirror.com && npm install -g typescript && tsc"
 
 rm -rf openRenamerBackend/static/*
 touch openRenamerBackend/static/.gitkeep