diff --git a/package.json b/package.json
index 29db354dab..9e06dff270 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "build-package": "npm run transpile && npm run copy-css && npm run generate-types && node tasks/prepare-package.js",
     "build-index": "shx rm -f build/index.js && npm run build-package && node tasks/generate-index.js",
     "build-legacy": "shx rm -rf build/legacy && npm run build-index && webpack --config config/webpack-config-legacy-build.mjs && cleancss --source-map src/ol/ol.css -o build/legacy/ol.css",
-    "build-site": "npm run build-examples && npm run apidoc && mkdir -p build/site && cp site/index.html build/site && mv build/apidoc build/site/apidoc && mv build/examples build/site/examples",
+    "build-site": "shx rm -rf build/site && npm run build-examples && npm run apidoc && shx mkdir -p build/site && shx cp site/index.html build/site/ && shx mv build/apidoc build/examples build/site/",
     "copy-css": "shx cp src/ol/ol.css build/ol/ol.css",
     "generate-types": "npx --package=typescript@3.8.3 -y -- tsc --project config/tsconfig-build.json --declaration --declarationMap --emitDeclarationOnly --outdir build/ol",
     "transpile": "shx rm -rf build/ol && shx mkdir -p build/ol && shx cp -rf src/ol build/ol/src && node tasks/serialize-workers.cjs && npx --package=typescript@4.3.5 -y -- tsc --project config/tsconfig-build.json",