diff --git a/src/showcase/src/flows.ts b/src/showcase/src/flows.ts
index 18758ef0ba..8724cb89f0 100644
--- a/src/showcase/src/flows.ts
+++ b/src/showcase/src/flows.ts
@@ -48,7 +48,7 @@ class MockAuthenticatedConnection extends AuthenticatedConnection {
   constructor() {
     super(
       "12345",
-      MultiWebAuthnIdentity.fromCredentials([]),
+      MultiWebAuthnIdentity.fromCredentials([], undefined),
       mockDelegationIdentity,
       BigInt(12345),
       mockActor