diff --git a/invenio_vocabularies/services/service.py b/invenio_vocabularies/services/service.py
index 47562a10..e5e14eac 100644
--- a/invenio_vocabularies/services/service.py
+++ b/invenio_vocabularies/services/service.py
@@ -12,14 +12,7 @@
 
 import sqlalchemy as sa
 from invenio_cache import current_cache
-from invenio_records_resources.services import (
-    Link,
-    LinksTemplate,
-    RecordService,
-    RecordServiceConfig,
-    SearchOptions,
-    pagination_links,
-)
+from invenio_records_resources.services import LinksTemplate, RecordService
 from invenio_records_resources.services.base.utils import map_search_params
 from invenio_records_resources.services.records.schema import ServiceSchemaWrapper
 from invenio_records_resources.services.uow import unit_of_work
@@ -32,6 +25,10 @@
 class VocabularyTypeService(RecordService):
     """Vocabulary type service."""
 
+    def rebuild_index(self, identity, uow=None):
+        """Raise error since services are not backed by search indices."""
+        raise NotImplementedError()
+
     def search(self, identity, params=None):
         """Search for vocabulary types entries."""
         self.require_permission(identity, "list_vocabularies")