diff --git a/.buildbot/node/Dockerfile b/.buildbot/node/Dockerfile
index bcc95ac..ad28b23 100644
--- a/.buildbot/node/Dockerfile
+++ b/.buildbot/node/Dockerfile
@@ -47,9 +47,11 @@ RUN ARCH='x64' \
 
 # For this package
 
-WORKDIR /app
+# WORKDIR /app
 COPY package*.json binding.gyp *.cc ./
 
 RUN npm install
 
+RUN mkdir -p ../out
+
 COPY . .
diff --git a/.buildbot/node/build.sh b/.buildbot/node/build.sh
index c135fa6..69390e6 100755
--- a/.buildbot/node/build.sh
+++ b/.buildbot/node/build.sh
@@ -1,8 +1,7 @@
-#!/bin/bash
+#!/bin/sh
 
 npm audit fix
 
-mkdir -p ../out
 cp package*.json ../out
 
 npm pack && mv *.tgz ../out/