diff --git a/VERSION b/VERSION
index a4b9c5a..fd0a688 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.28.8
+0.28.9
diff --git a/scarf/datastore/datastore.py b/scarf/datastore/datastore.py
index 0cc65dc..033fed5 100644
--- a/scarf/datastore/datastore.py
+++ b/scarf/datastore/datastore.py
@@ -195,7 +195,7 @@ def mark_hto_identities(
             assay.rawData[self.cells.fetch_all(cell_key)], self.nthreads
         )
         hto_idents = hto_demux(
-            pd.DataFrame(counts, columns=assay.feats.fetch("ids", key=cell_key))
+            pd.DataFrame(counts, columns=assay.feats.fetch_all("ids"))
         )
         self.cells.insert(
             column_name=label,