diff --git a/packages/core-api/src/app/types.ts b/packages/core-api/src/app/types.ts
index 099438a58c..a152ef9dfb 100644
--- a/packages/core-api/src/app/types.ts
+++ b/packages/core-api/src/app/types.ts
@@ -34,11 +34,11 @@ export type SignInResult = {
   /**
    * ID token that will be returned by the IdentityApi
    */
-  idToken: string | undefined;
+  idToken?: string;
   /**
    * Logout handler that will be called if the user requests a logout.
    */
-  logout: () => Promise<void>;
+  logout?: () => Promise<void>;
 };
 
 export type SignInPageProps = {