diff --git a/examples/ui-demo/.env.example b/examples/ui-demo/.env.example
index 8d3729bf41..8fcd700662 100644
--- a/examples/ui-demo/.env.example
+++ b/examples/ui-demo/.env.example
@@ -1,3 +1,4 @@
 API_KEY="<API_KEY>"
 ALCHEMY_API_URL="https://api.g.alchemy.com"
-ALCHEMY_RPC_URL="https://eth-sepolia.g.alchemy.com/v2/<API_KEY>"
\ No newline at end of file
+ALCHEMY_RPC_URL="https://eth-sepolia.g.alchemy.com/v2/<API_KEY>"
+NEXT_PUBLIC_PAYMASTER_POLICY_ID="<POLICY_ID>"
\ No newline at end of file
diff --git a/examples/ui-demo/env.mjs b/examples/ui-demo/env.mjs
index c2014c028e..ab5fdc30ef 100644
--- a/examples/ui-demo/env.mjs
+++ b/examples/ui-demo/env.mjs
@@ -18,7 +18,9 @@ export const env = createEnv({
    * isn't built with invalid env vars. To expose them to the client, prefix them with
    * `NEXT_PUBLIC_`.
    */
-  client: {},
+  client: {
+    NEXT_PUBLIC_PAYMASTER_POLICY_ID: z.string(),
+  },
 
   /**
    * You can't destruct `process.env` as a regular object in the Next.js edge runtimes (e.g.