diff --git a/debian/rake-tasks.sh b/debian/rake-tasks.sh
index 350e4cc981..6545ade346 100755
--- a/debian/rake-tasks.sh
+++ b/debian/rake-tasks.sh
@@ -49,4 +49,5 @@ runuser -u ${gitlab_user} -- sh -c 'cd /usr/share/gitlab/public/assets && \
 
 echo "Webpacking..."
 # Workaround for webpack crashing with nodejs 10 - https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956211
-runuser -u ${gitlab_user} -- sh -c 'NODE_OPTIONS="--max-old-space-size=2048" webpack --config config/webpack.config.js'
+# Build assets in production mode - https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956508
+runuser -u ${gitlab_user} -- sh -c 'NODE_ENV="production" NODE_OPTIONS="--max-old-space-size=4096" webpack --config config/webpack.config.js'