diff --git a/aiida_pseudo/groups/mixins/cutoffs.py b/aiida_pseudo/groups/mixins/cutoffs.py
index 4ffe5af..a9022fb 100644
--- a/aiida_pseudo/groups/mixins/cutoffs.py
+++ b/aiida_pseudo/groups/mixins/cutoffs.py
@@ -167,6 +167,7 @@ def get_recommended_cutoffs(self, *, elements=None, structure=None, stringency=N
         :param elements: single or tuple of elements.
         :param structure: a ``StructureData`` node.
         :param stringency: optional stringency if different from the default.
+        :param unit: string definition of a unit of energy as recognized by the ``UnitRegistry`` of the ``pint`` lib.
         :return: tuple of recommended wavefunction and density cutoff.
         :raises ValueError: if the requested stringency is not defined for this family.
         :raises ValueError: if optional unit specified is invalid.
diff --git a/tests/conftest.py b/tests/conftest.py
index 28e4ca5..afda81f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -117,7 +117,7 @@ def _get_pseudo_potential_data(element='Ar', entry_point=None) -> PseudoPotentia
 
 @pytest.fixture
 def get_pseudo_family(tmpdir, filepath_pseudos):
-    """Return a factory for a `PseudoPotentialFamily` instance."""
+    """Return a factory for a ``PseudoPotentialFamily`` instance."""
 
     def _get_pseudo_family(
         label='family',
diff --git a/tests/groups/mixins/test_cutoffs.py b/tests/groups/mixins/test_cutoffs.py
index 3312d11..e4f69aa 100644
--- a/tests/groups/mixins/test_cutoffs.py
+++ b/tests/groups/mixins/test_cutoffs.py
@@ -38,7 +38,7 @@ def test_get_cutoffs_private(get_pseudo_family, get_cutoffs):
 
 @pytest.mark.usefixtures('clear_db')
 def test_validate_cutoffs_unit():
-    """Test the `CutoffsFamily.validate_cutoffs_unit` method."""
+    """Test the ``CutoffsFamily.validate_cutoffs_unit`` method."""
     with pytest.raises(TypeError):
         CutoffsFamily.validate_cutoffs_unit(10)
 
@@ -97,7 +97,7 @@ def test_get_cutoff_stringencies(get_pseudo_family, get_cutoffs):
 
 @pytest.mark.usefixtures('clear_db')
 def test_set_cutoffs(get_pseudo_family):
-    """Test the `CutoffsFamily.set_cutoffs` method."""
+    """Test the ``CutoffsFamily.set_cutoffs`` method."""
     elements = ['Ar', 'He']
     family = get_pseudo_family(label='SSSP/1.0/PBE/efficiency', cls=CutoffsFamily, elements=elements)
     cutoffs = {'default': {element: {'cutoff_wfc': 1.0, 'cutoff_rho': 2.0} for element in elements}}
@@ -164,7 +164,7 @@ def test_set_cutoffs_auto_default(get_pseudo_family):
 
 @pytest.mark.usefixtures('clear_db')
 def test_get_cutoffs(get_pseudo_family):
-    """Test the `CutoffsFamily.get_cutoffs` method."""
+    """Test the ``CutoffsFamily.get_cutoffs`` method."""
     elements = ['Ar', 'He']
     family = get_pseudo_family(label='SSSP/1.0/PBE/efficiency', cls=CutoffsFamily, elements=elements)
     cutoffs = {'default': {element: {'cutoff_wfc': 1.0, 'cutoff_rho': 2.0} for element in elements}}
@@ -182,7 +182,7 @@ def test_get_cutoffs(get_pseudo_family):
 
 @pytest.mark.usefixtures('clear_db')
 def test_get_recommended_cutoffs(get_pseudo_family, generate_structure):
-    """Test the `CutoffsFamily.get_recommended_cutoffs` method."""
+    """Test the ``CutoffsFamily.get_recommended_cutoffs`` method."""
     elements = ['Ar', 'He']
     cutoffs = {
         'default': {
@@ -270,7 +270,7 @@ def test_get_recommended_cutoffs_unit(get_pseudo_family):
 
 @pytest.mark.usefixtures('clear_db')
 def test_get_cutoffs_unit(get_pseudo_family, get_cutoffs):
-    """Test the `CutoffsFamily.get_cutoffs_unit` method."""
+    """Test the ``CutoffsFamily.get_cutoffs_unit`` method."""
     family = get_pseudo_family(cls=CutoffsFamily)
     assert family.get_cutoffs_unit() == 'eV'