diff --git a/lib/types/validation.test.js b/lib/types/validation.test.js
--- a/lib/types/validation.test.js
+++ b/lib/types/validation.test.js
@@ -24,6 +24,7 @@
 import { threadTypes } from './thread-types-enum.js';
 import { legacyRawThreadInfoValidator } from './thread-types.js';
 import { updateTypes } from './update-types-enum.js';
+import { specialRoles } from '../permissions/special-roles.js';
 import { messageSpecs } from '../shared/messages/message-specs.js';
 import { updateSpecs } from '../shared/updates/update-specs.js';
 import { values } from '../utils/objects.js';
@@ -533,6 +534,7 @@
         child_open_join_thread: true,
       },
       isDefault: true,
+      specialRole: specialRoles.DEFAULT_ROLE,
     },
   },
   currentUser: {