diff --git a/package.json b/package.json
index f670b6c..371e4a3 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": ".eleventy.js",
   "scripts": {
     "develop": "npx eleventy --serve",
-    "build": "SET NODE_ENV=production npx @11ty/eleventy"
+    "build": "NODE_ENV=production npx @11ty/eleventy"
   },
   "keywords": [],
   "author": "",