diff --git a/package.json b/package.json
index f39b1f8..1a325fe 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "scripts": {
     "dev": "svelte-kit dev",
     "build": "svelte-kit build",
-    "package": "svelte-kit package",
+    "package": "svelte-kit package && find package/ -type f -exec sed -i '' -e 's/process.env.NODE_ENV/\"production\"/' {} \\;",
     "preview": "svelte-kit preview",
     "check": "svelte-check --tsconfig ./tsconfig.json",
     "check:watch": "svelte-check --tsconfig ./tsconfig.json --watch",