diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py
index 48e2460241c..8341b885af7 100644
--- a/Lib/unittest/case.py
+++ b/Lib/unittest/case.py
@@ -163,6 +163,7 @@ class TestCase(object):
     # This attribute sets the maximum length of a diff in failure messsages
     # by assert methods using difflib. It is looked up as an instance attribute
     # so can be configured by individual tests if required.
+
     maxDiff = 80*8
 
     # Attribute used by TestSuite for classSetUp