diff --git a/package.json b/package.json
index cfe6f81..1a85674 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "jest": "npx jest",
     "lint": "npm run build && eslint --ext .js,.ts,.tsx *.js src test --color",
     "mocha": "mocha",
+    "prepack": "npm run build",
     "prepare": "npx sort-package-json",
     "test": "npm run build && npm run jest",
     "test:ci": "npm run build && npm run test --coverage && npm run coveralls",