diff --git a/demo/src/env.d.ts b/demo/src/env.d.ts
new file mode 100644
index 0000000..8c34fb4
--- /dev/null
+++ b/demo/src/env.d.ts
@@ -0,0 +1 @@
+/// <reference types="astro/client" />
\ No newline at end of file