diff --git a/tests/unit/config/test_configtypes.py b/tests/unit/config/test_configtypes.py
index 5a596747e..62533364e 100644
--- a/tests/unit/config/test_configtypes.py
+++ b/tests/unit/config/test_configtypes.py
@@ -286,7 +286,7 @@ class TestMappingType:
     def test_mapping_type_matches_valid_values(self, typ):
         assert list(sorted(typ.MAPPING)) == list(sorted(typ.valid_values))
 
-        
+
 class TestString:
 
     """Test String."""