diff --git a/package-lock.json b/package-lock.json
index 1f3a0d3..ecfea94 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@zazuko/spex",
-  "version": "0.1.20",
+  "version": "0.2.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@zazuko/spex",
-      "version": "0.1.20",
+      "version": "0.2.0",
       "license": "MIT",
       "dependencies": {
         "@headlessui/vue": "^1.7.14",
diff --git a/vite.config.js b/vite.config.js
index 6467d46..6b25dce 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -51,6 +51,9 @@ export default defineConfig({
   ],
   define: {
     global: 'window',
+    'process.env': {
+      NODE_ENV: JSON.stringify(process.env.NODE_ENV),
+    }
   },
   resolve: {
     alias: {