diff --git a/src/app/core/core.module.ts b/src/app/core/core.module.ts
index 81b70e42c2..c00cfd6002 100644
--- a/src/app/core/core.module.ts
+++ b/src/app/core/core.module.ts
@@ -170,6 +170,7 @@ import { OrcidHistory } from './orcid/model/orcid-history.model';
 import { OrcidAuthService } from './orcid/orcid-auth.service';
 import { VocabularyDataService } from './submission/vocabularies/vocabulary.data.service';
 import { VocabularyEntryDetailsDataService } from './submission/vocabularies/vocabulary-entry-details.data.service';
+import { HierarchicalBrowseDefinition } from './shared/hierarchical-browse-definition.model';
 
 /**
  * When not in production, endpoint responses can be mocked for testing purposes
@@ -325,6 +326,7 @@ export const models =
     AuthStatus,
     BrowseEntry,
     FlatBrowseDefinition,
+    HierarchicalBrowseDefinition,
     ClaimedTask,
     TaskObject,
     PoolTask,
diff --git a/src/app/core/shared/flat-browse-definition.model.ts b/src/app/core/shared/flat-browse-definition.model.ts
index 2002d6bbab..fa664c7747 100644
--- a/src/app/core/shared/flat-browse-definition.model.ts
+++ b/src/app/core/shared/flat-browse-definition.model.ts
@@ -22,9 +22,6 @@ export class FlatBrowseDefinition extends CacheableObject implements BrowseDefin
   @autoserialize
   id: string;
 
-  @autoserialize
-  metadataBrowse: boolean;
-
   @autoserialize
   sortOptions: SortOption[];