diff --git a/vite.config.ts b/vite.config.ts
index 663fcaa..dec11f0 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -5,5 +5,6 @@ export default defineConfig({
   plugins: [react()],
   preview: {
     port: 8089,
+    allowedHosts: ["runosaari.fi", "www.runosaari.fi"],
   },
 });