diff --git a/package.json b/package.json
index 49cbb7b..5a3a558 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
 		"build": "npm run build-node && npm run build-browser",
 		"build-node": "tsc",
 		"build-browser": "esbuild src/browser.ts --bundle --minify --sourcemap --target=firefox120 --outfile=public/bundle.js",
+		"postinstall": "npm run build",
 		"clean-coverage": "rm -rf coverage .nyc_output .xunit",
 		"coverage": "npm run clean-coverage && nyc mocha",
 		"test-reports": "npm run clean-coverage && nyc --reporter clover mocha --reporter xunit --reporter-option output=.xunit",