diff --git a/benchmarks/benches/indexing.rs b/benchmarks/benches/indexing.rs
index c31bfab89..65f581b93 100644
--- a/benchmarks/benches/indexing.rs
+++ b/benchmarks/benches/indexing.rs
@@ -864,22 +864,12 @@ fn delete_documents_from_ids(index: Index, document_ids_to_delete: Vec<RoaringBi
 
     let indexer_config = IndexerConfig::default();
     for ids in document_ids_to_delete {
-        let external_documents_ids = index.external_documents_ids();
-        // FIXME: for filters matching a lot of documents, this will allocate a huge vec of external docids (strings).
-        // Since what we have is an iterator, it would be better to delete in chunks
-        let external_to_internal: std::result::Result<Vec<_>, RoaringBitmap> =
-            external_documents_ids
-                .find_external_id_of(&wtxn, ids)
-                .unwrap()
-                .only_external_ids()
-                .collect();
-        let ids = external_to_internal.unwrap();
         let config = IndexDocumentsConfig::default();
 
         let mut builder =
             IndexDocuments::new(&mut wtxn, &index, &indexer_config, config, |_| (), || false)
                 .unwrap();
-        (builder, _) = builder.remove_documents(ids).unwrap();
+        (builder, _) = builder.remove_documents_from_db_no_batch(&ids).unwrap();
         builder.execute().unwrap();
     }