diff --git a/package.json b/package.json
index 4385ad4a8..6b3a7aff9 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,8 @@
   },
   "scripts": {
     "bower": "bower install",
-    "build": "python setup.py js css"
+    "build": "python setup.py js css",
+    "build:watch": "set -e; while true; do npm run build; sleep 3; done"
   },
   "devDependencies": {
     "bower": "*",