diff --git a/package.json b/package.json
index 0f67ee9..357e7ce 100644
--- a/package.json
+++ b/package.json
@@ -7,8 +7,9 @@
   "author": "Jalil Arfaoui <jalil@arfaoui.net>",
   "license": "MIT",
   "scripts": {
-    "dev": "eleventy --serve",
-    "build": "eleventy"
+    "clean": "rm -rf _site",
+    "dev": "yarn clean && eleventy --serve",
+    "build": "yarn clean && eleventy"
   },
   "devDependencies": {
     "@11ty/eleventy": "^1.0.1",