diff --git a/backend/src/app/repositories/asset_repository.py b/backend/src/app/repositories/asset_repository.py
index 86717b0..626b7dc 100644
--- a/backend/src/app/repositories/asset_repository.py
+++ b/backend/src/app/repositories/asset_repository.py
@@ -29,6 +29,7 @@ class AssetRepository:
         content_type: str,
         size_bytes: int,
         storage_key_original: str,
+        folder_id: Optional[str] = None,
     ) -> Asset:
         """
         Create a new asset.
@@ -40,6 +41,7 @@ class AssetRepository:
             content_type: MIME type
             size_bytes: File size in bytes
             storage_key_original: S3 storage key
+            folder_id: Optional folder ID
 
         Returns:
             Created asset instance
@@ -52,6 +54,7 @@ class AssetRepository:
             content_type=content_type,
             size_bytes=size_bytes,
             storage_key_original=storage_key_original,
+            folder_id=folder_id,
         )
         self.session.add(asset)
         await self.session.flush()