diff --git a/src/lib/error/unleash-error.test.ts b/src/lib/error/unleash-error.test.ts
index 2df0727b0e..3369d10840 100644
--- a/src/lib/error/unleash-error.test.ts
+++ b/src/lib/error/unleash-error.test.ts
@@ -374,6 +374,7 @@ describe('Error serialization special cases', () => {
             type: 'password',
             path: `base-path/auth/simple/login`,
             message: 'You must sign in order to use Unleash',
+            defaultHidden: true,
             options: [
                 {
                     type: 'google',
diff --git a/src/lib/types/authentication-required.ts b/src/lib/types/authentication-required.ts
index 9efd6579b4..b9887ac165 100644
--- a/src/lib/types/authentication-required.ts
+++ b/src/lib/types/authentication-required.ts
@@ -39,6 +39,7 @@ class AuthenticationRequired extends UnleashError {
             ...super.toJSON(),
             path: this.path,
             type: this.type,
+            defaultHidden: this.defaultHidden,
             ...(this.options ? { options: this.options } : {}),
         };
     }