diff --git a/package.json b/package.json
index aac5c89..38e3590 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "check:size": "rollup -c",
     "build:pick": "cherry-pick --name=dom-helpers --cwd=lib --input-dir=../src --cjs-dir=cjs --esm-dir=esm",
     "build": "rimraf lib && 4c build src && yarn build:pick",
+    "prepublishOnly": "yarn build",
     "lint": "tsc -p ./ --noEmit && eslint src test",
     "release": "rollout"
   },