diff --git a/packages/core/src/dapp-relay.ts b/packages/core/src/dapp-relay.ts
index aa3b836..3408ff8 100644
--- a/packages/core/src/dapp-relay.ts
+++ b/packages/core/src/dapp-relay.ts
@@ -178,7 +178,7 @@ export function initiateDappRelay(
   const cleanup = initiateRelay(
     wrappedCallback,
     dappPrivateKey,
-    new Uint8Array(33),
+    walletPublicKeyNostr ?? new Uint8Array(33),
     {
       explicitRelayUrls: relayUrls,
       reconnectInterval: options.reconnectInterval,