diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5c1949712..9bffea855 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@
   - Support `stimulus_template` as optional predefined column in `IntracellularStimuliTable`. @stephprince [#1815](https://github.com/NeurodataWithoutBorders/pynwb/pull/1815)
   - Support `NWBDataInterface` and `DynamicTable` in `NWBFile.stimulus`. @rly [#1842](https://github.com/NeurodataWithoutBorders/pynwb/pull/1842)
 - Added support for python 3.12 and upgraded dependency versions. This also includes infrastructure updates for developers. @mavaylon1 [#1853](https://github.com/NeurodataWithoutBorders/pynwb/pull/1853)
-- Added `mock_Units` for generating Units tables.  @h-mayorquin [#1875](https://github.com/NeurodataWithoutBorders/pynwb/pull/1875)
+- Added `mock_Units` for generating Units tables.  @h-mayorquin [#1875](https://github.com/NeurodataWithoutBorders/pynwb/pull/1875) and [#1883](https://github.com/NeurodataWithoutBorders/pynwb/pull/1883)
 
 ### Bug fixes
 - Fix bug with reading file with linked `TimeSeriesReferenceVectorData` @rly [#1865](https://github.com/NeurodataWithoutBorders/pynwb/pull/1865)
diff --git a/src/pynwb/testing/mock/ecephys.py b/src/pynwb/testing/mock/ecephys.py
index 97831c3de..36796c267 100644
--- a/src/pynwb/testing/mock/ecephys.py
+++ b/src/pynwb/testing/mock/ecephys.py
@@ -129,7 +129,7 @@ def mock_Units(
     nwbfile: Optional[NWBFile] = None,
 ) -> Units:
 
-    units_table = Units()
+    units_table = Units(name="units")  # This is for nwbfile.units= mock_Units() to work
     units_table.add_column(name="unit_name", description="a readable identifier for the unit")
 
     rng = np.random.default_rng(seed=seed)