diff --git a/package.json b/package.json
index 74706389..b66b8797 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "dev": "node build/dev-server.js",
     "build": "node build/build.js",
     "unit": "karma start test/unit/karma.conf.js --single-run",
+    "unit:watch": "karma start test/unit/karma.conf.js --single-run=false",
     "e2e": "node test/e2e/runner.js",
     "test": "npm run unit && npm run e2e",
     "lint": "eslint --ext .js,.vue src test/unit/specs test/e2e/specs"