diff --git a/src/spikeinterface/core/channelsaggregationrecording.py b/src/spikeinterface/core/channelsaggregationrecording.py
index 3947a0decc..0797313793 100644
--- a/src/spikeinterface/core/channelsaggregationrecording.py
+++ b/src/spikeinterface/core/channelsaggregationrecording.py
@@ -14,7 +14,15 @@ class ChannelsAggregationRecording(BaseRecording):
 
     """
 
-    def __init__(self, recording_list_or_dict, renamed_channel_ids=None):
+    def __init__(self, recording_list_or_dict=None, renamed_channel_ids=None, recording_list=None):
+
+        if recording_list is not None:
+            warnings.warn(
+                "`recording_list` is deprecated and will be removed in 0.105.0. Please use `recording_list_or_dict` instead.",
+                category=DeprecationWarning,
+                stacklevel=2,
+            )
+            recording_list_or_dict = recording_list
 
         if isinstance(recording_list_or_dict, dict):
             recording_list = list(recording_list_or_dict.values())
@@ -258,12 +266,4 @@ def aggregate_channels(
         The aggregated recording object
     """
 
-    if recording_list is not None:
-        warnings.warn(
-            "`recording_list` is deprecated and will be removed in 0.105.0. Please use `recording_list_or_dict` instead.",
-            category=DeprecationWarning,
-            stacklevel=2,
-        )
-        recording_list_or_dict = recording_list
-
-    return ChannelsAggregationRecording(recording_list_or_dict, renamed_channel_ids)
+    return ChannelsAggregationRecording(recording_list_or_dict, renamed_channel_ids, recording_list)
diff --git a/src/spikeinterface/core/tests/test_loading.py b/src/spikeinterface/core/tests/test_loading.py
index d9c20aa505..bfaf97ec4a 100644
--- a/src/spikeinterface/core/tests/test_loading.py
+++ b/src/spikeinterface/core/tests/test_loading.py
@@ -1,7 +1,14 @@
 import pytest
 
 import numpy as np
-from spikeinterface import generate_ground_truth_recording, create_sorting_analyzer, load, SortingAnalyzer, Templates
+from spikeinterface import (
+    generate_ground_truth_recording,
+    create_sorting_analyzer,
+    load,
+    SortingAnalyzer,
+    Templates,
+    aggregate_channels,
+)
 from spikeinterface.core.motion import Motion
 from spikeinterface.core.generate import generate_unit_locations, generate_templates
 from spikeinterface.core.testing import check_recordings_equal, check_sortings_equal
@@ -176,6 +183,24 @@ def test_load_motion(tmp_path, generate_motion_object):
     assert motion == motion_loaded
 
 
+def test_load_aggregate_recording_from_json(generate_recording_sorting, tmp_path):
+    """
+    Save, then load an aggregated recording using its provenance.json file.
+    """
+
+    recording, _ = generate_recording_sorting
+
+    recording.set_property("group", [0, 0, 1, 1])
+    list_of_recs = list(recording.split_by("group").values())
+    aggregated_rec = aggregate_channels(list_of_recs)
+
+    recording_path = tmp_path / "aggregated_recording"
+    aggregated_rec.save_to_folder(folder=recording_path)
+    loaded_rec = load(recording_path / "provenance.json", base_folder=recording_path)
+
+    assert np.all(loaded_rec.get_property("group") == recording.get_property("group"))
+
+
 @pytest.mark.streaming_extractors
 @pytest.mark.skipif(not HAVE_S3, reason="s3fs not installed")
 def test_remote_recording():