diff --git a/builder/build-tarball b/builder/build-tarball
index d0ee4e5..baa3188 100755
--- a/builder/build-tarball
+++ b/builder/build-tarball
@@ -2,8 +2,15 @@
 
 set -e
 
+build_www_dir() {
+  sudo docker build -t kasmweb/www -f builder/dockerfile.www.build .
+  sudo docker run -it --rm -v $PWD/builder/www:/build kasmweb/www:latest
+}
+
 cd "$(dirname "$0")/.."
 
+build_www_dir
+
 sudo docker pull ubuntu:18.04
 sudo docker build -t kasmvncbuilder:18.04 -f builder/dockerfile.ubuntu1804.build .
 mkdir -p builder/build
diff --git a/release/maketarball.in b/release/maketarball.in
index 145ce84..02888f7 100644
--- a/release/maketarball.in
+++ b/release/maketarball.in
@@ -51,7 +51,7 @@ if [ $SERVER = 1 ]; then
 	mkdir -p $OUTDIR/lib/dri/
 	install -m 755 ./xorg.build/lib/dri/swrast_dri.so $OUTDIR/lib/dri/
 	mkdir -p $OUTDIR/share/kasmvnc
-	cp -r $SRCDIR/kasmweb $OUTDIR/share/kasmvnc/www
+	cp -r $SRCDIR/builder/www $OUTDIR/share/kasmvnc/www
 fi
 
 #pushd $TMPDIR/inst