diff --git a/app/core/models/node_storage.py b/app/core/models/node_storage.py
index 367ee5c..7aa42a9 100644
--- a/app/core/models/node_storage.py
+++ b/app/core/models/node_storage.py
@@ -55,6 +55,7 @@ class StoredContent(AlchemyBase):
         if self.type.startswith('local'):
             pass
         elif self.type.startswith('onchain'):
+            extra_fields['onchain_index'] = self.onchain_index
             for k in [
                 'item_address', 'license_type',
                 'metadata_cid', 'content_cid', 'cover_cid',