diff --git a/demo-shell/package.json b/demo-shell/package.json
index adc6e77f79..7fd35e1758 100644
--- a/demo-shell/package.json
+++ b/demo-shell/package.json
@@ -9,7 +9,7 @@
     "start": "npm run server-versions && rimraf dist && ng serve --host 0.0.0.0 --proxy-config proxy.conf.js --app dist --open",
     "start:dev": " npm run lint && npm run server-versions && rimraf dist && concurrently \"ng serve --host 0.0.0.0 --disable-host-check --app dev pp-dev --proxy-config proxy.conf.js --open\" \"npm run style:dev --watch\" \"npm run copy:dev\" ",
     "start:dist": "npm run server-versions && rimraf dist && node --max_old_space_size=30000 node_modules/.bin/ng serve --prod --host 0.0.0.0 --disable-host-check --app dist",
-    "build": "npm run validate-config && npm run server-versions && rimraf dist && ng build--app dist",
+    "build": "npm run validate-config && npm run server-versions && rimraf dist && ng build --app dist",
     "build:dev": "npm run validate-config && npm run lint && npm run style:dev && npm run server-versions && rimraf dist && ng build --app dev",
     "build:dist": "npm run validate-config && npm run server-versions && rimraf dist && ng build --prod --app dist",
     "style:dev": "npm run webpack -- --config  config/webpack.style.js --progress --profile --bail",