diff --git a/package.json b/package.json
index b0ca4d3..2705372 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,8 @@
     "lint": "eslint src && flow check",
     "fix": "eslint --fix src",
     "eslint-check": "eslint --print-config .eslintrc.js | eslint-config-prettier-check",
-    "build": "babel src -d lib --ignore '*.test.js'"
+    "build": "babel src -d lib --ignore '*.test.js'",
+    "watch": "babel src -d lib --ignore '*.test.js' --watch"
   },
   "jest": {
     "automock": false,