diff --git a/packages/config-array/package.json b/packages/config-array/package.json
index a7b94b80..737a9518 100644
--- a/packages/config-array/package.json
+++ b/packages/config-array/package.json
@@ -26,6 +26,7 @@
     "build:dedupe-types": "node ../../tools/dedupe-types.js dist/cjs/index.cjs dist/esm/index.js", 
     "build": "rollup -c && npm run build:dedupe-types && tsc -p tsconfig.esm.json && tsc -p tsconfig.cjs.json",
     "pretest": "npm run build",
+    "prepare": "npm run build",
     "test": "mocha tests/"
   },
   "keywords": [