diff --git a/app/vmui/Dockerfile-build b/app/vmui/Dockerfile-build
index 9d1d1e4300..9c50fbf35c 100644
--- a/app/vmui/Dockerfile-build
+++ b/app/vmui/Dockerfile-build
@@ -1,5 +1,8 @@
 FROM node:18-alpine3.17
 
+# Sets a custom location for the npm cache, preventing access errors in system directories
+ENV NPM_CONFIG_CACHE=/build/.npm
+
 RUN apk update && apk upgrade
 RUN apk add --no-cache bash bash-doc bash-completion libtool autoconf automake nasm pkgconfig libpng gcc make g++ zlib-dev gawk