diff --git a/src/dandi_s3_log_parser/_command_line_interface.py b/src/dandi_s3_log_parser/_command_line_interface.py
index 337d9b8..767ae1b 100644
--- a/src/dandi_s3_log_parser/_command_line_interface.py
+++ b/src/dandi_s3_log_parser/_command_line_interface.py
@@ -2,7 +2,6 @@
 
 import collections
 import pathlib
-from typing import Literal
 
 import click
 
@@ -134,12 +133,6 @@ def _bin_all_reduced_s3_logs_by_object_key_cli(
     required=True,
     type=click.Path(writable=False),
 )
-@click.option(
-    "--object_type",
-    help="The type of objects to map the logs to, as determined by the parents of the object keys.",
-    required=True,
-    type=click.Choice(["blobs", "zarr"]),
-)
 @click.option(
     "--excluded_dandisets",
     help="A comma-separated list of Dandiset IDs to exclude from processing.",
@@ -156,7 +149,7 @@ def _bin_all_reduced_s3_logs_by_object_key_cli(
 )
 @click.option(
     "--dandiset_limit",
-    help="The maximum number of Dandisets to process per call.",
+    help="The maximum number of Dandisets to process per call. Useful for quick testing.",
     required=False,
     type=int,
     default=None,
@@ -164,7 +157,6 @@ def _bin_all_reduced_s3_logs_by_object_key_cli(
 def _map_binned_s3_logs_to_dandisets_cli(
     binned_s3_logs_folder_path: pathlib.Path,
     mapped_s3_logs_folder_path: pathlib.Path,
-    object_type: Literal["blobs", "zarr"],
     excluded_dandisets: str | None,
     restrict_to_dandisets: str | None,
     dandiset_limit: int | None,
@@ -175,7 +167,6 @@ def _map_binned_s3_logs_to_dandisets_cli(
     map_binned_s3_logs_to_dandisets(
         binned_s3_logs_folder_path=binned_s3_logs_folder_path,
         mapped_s3_logs_folder_path=mapped_s3_logs_folder_path,
-        object_type=object_type,
         excluded_dandisets=split_excluded_dandisets,
         restrict_to_dandisets=split_restrict_to_dandisets,
         dandiset_limit=dandiset_limit,
diff --git a/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py b/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py
index bdb7917..e24e5d4 100644
--- a/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py
+++ b/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py
@@ -1,6 +1,5 @@
 import os
 import pathlib
-from typing import Literal
 
 import dandi.dandiapi
 import natsort
@@ -15,7 +14,6 @@
 def map_binned_s3_logs_to_dandisets(
     binned_s3_logs_folder_path: DirectoryPath,
     mapped_s3_logs_folder_path: DirectoryPath,
-    object_type: Literal["blobs", "zarr"],
     excluded_dandisets: list[str] | None = None,
     restrict_to_dandisets: list[str] | None = None,
     dandiset_limit: int | None = None,
@@ -33,14 +31,13 @@ def map_binned_s3_logs_to_dandisets(
         The path to the folder containing the reduced S3 log files.
     mapped_s3_logs_folder_path : DirectoryPath
         The path to the folder where the mapped logs will be saved.
-    object_type : one of "blobs" or "zarr"
-        The type of objects to map the logs to, as determined by the parents of the object keys.
     excluded_dandisets : list of str, optional
         A list of Dandiset IDs to exclude from processing.
     restrict_to_dandisets : list of str, optional
         A list of Dandiset IDs to exclusively process.
     dandiset_limit : int, optional
         The maximum number of Dandisets to process per call.
+        Useful for quick testing.
     """
     if "IPINFO_CREDENTIALS" not in os.environ:
         message = "The environment variable 'IPINFO_CREDENTIALS' must be set to import `dandi_s3_log_parser`!"
@@ -89,7 +86,6 @@ def map_binned_s3_logs_to_dandisets(
             dandiset=dandiset,
             binned_s3_logs_folder_path=binned_s3_logs_folder_path,
             dandiset_logs_folder_path=mapped_s3_logs_folder_path,
-            object_type=object_type,
             client=client,
             ip_hash_to_region=ip_hash_to_region,
             ip_hash_not_in_services=ip_hash_not_in_services,
@@ -105,7 +101,6 @@ def _map_binned_logs_to_dandiset(
     dandiset: dandi.dandiapi.RemoteDandiset,
     binned_s3_logs_folder_path: pathlib.Path,
     dandiset_logs_folder_path: pathlib.Path,
-    object_type: Literal["blobs", "zarr"],
     client: dandi.dandiapi.DandiAPIClient,
     ip_hash_to_region: dict[str, str],
     ip_hash_not_in_services: dict[str, bool],
@@ -148,11 +143,6 @@ def _map_binned_logs_to_dandiset(
             dandi_filename = asset_as_path.name.replace(".", "_")
 
             is_asset_zarr = ".zarr" in asset_suffixes
-            if is_asset_zarr and object_type == "blobs":
-                continue
-            if not is_asset_zarr and object_type == "zarr":
-                continue
-
             if is_asset_zarr:
                 blob_id = asset.zarr
                 binned_s3_log_file_path = binned_s3_logs_folder_path / "zarr" / f"{blob_id}.tsv"
diff --git a/test_live_services/test_mapping/test_map_all_reduced_s3_logs_to_dandisets.py b/test_live_services/test_mapping/test_map_all_reduced_s3_logs_to_dandisets.py
index 1ad0811..d2b3f6b 100644
--- a/test_live_services/test_mapping/test_map_all_reduced_s3_logs_to_dandisets.py
+++ b/test_live_services/test_mapping/test_map_all_reduced_s3_logs_to_dandisets.py
@@ -20,12 +20,6 @@ def test_map_all_reduced_s3_logs_to_dandisets(tmpdir: py.path.local):
     dandi_s3_log_parser.map_binned_s3_logs_to_dandisets(
         binned_s3_logs_folder_path=example_binned_s3_logs_folder_path,
         mapped_s3_logs_folder_path=test_mapped_s3_logs_folder_path,
-        object_type="blobs",
-    )
-    dandi_s3_log_parser.map_binned_s3_logs_to_dandisets(
-        binned_s3_logs_folder_path=example_binned_s3_logs_folder_path,
-        mapped_s3_logs_folder_path=test_mapped_s3_logs_folder_path,
-        object_type="zarr",
     )
 
     test_file_paths = {