diff --git a/test/test__getsetitem__.py b/test/test__getsetitem__.py
index 56a2d7ff0a30d965c2da68bb0cdfb695d4afc51b..a72c9e7829481936cbc5ad01694bbac52d759691 100644
--- a/test/test__getsetitem__.py
+++ b/test/test__getsetitem__.py
@@ -52,7 +52,7 @@ def test__getitem_single_loc_fail(idxer):
         a = d1.loc[:, idxer]
 
 
-@pytest.mark.parametrize('idxer', [-5, 99, 'a', '2', ])
+@pytest.mark.parametrize('idxer', [-5, 99, 'a', '2', None, ])
 def test__getitem_single_iloc_fail(idxer):
     with pytest.raises(KeyError):
         a = d1.iloc[:, idxer]
diff --git a/test/test_dios.py b/test/test_dios.py
index 77f884c09025ae33f1d4c8e79f37ba827e3b6d3d..9cc71aeb6254a949905da37988bd7fceac27aa79 100644
--- a/test/test_dios.py
+++ b/test/test_dios.py
@@ -138,7 +138,7 @@ def test__op2__(left, right, op):
                 assert res == exp
 
     except ZeroDivisionError:
-        pytest.mark.skip('ZeroDivisionError')
+        pytest.skip('ZeroDivisionError')
 
 
 @pytest.mark.parametrize('data', _diosmatr(ALL))