diff --git a/Lib/unittest/test/test_case.py b/Lib/unittest/test/test_case.py
index 687fe5b65f1..c2401c39b91 100644
--- a/Lib/unittest/test/test_case.py
+++ b/Lib/unittest/test/test_case.py
@@ -620,7 +620,7 @@ def AllSnakesCreatedEqual(a, b, msg=None):
         self.addTypeEqualityFunc(SadSnake, AllSnakesCreatedEqual)
         self.assertEqual(s1, s2)
         # No this doesn't clean up and remove the SadSnake equality func
-        # from this TestCase instance but since its a local nothing else
+        # from this TestCase instance but since it's local nothing else
         # will ever notice that.
 
     def testAssertIs(self):