diff --git a/HowToWriteTests.md b/HowToWriteTests.md
index f959304..1b911e7 100644
--- a/HowToWriteTests.md
+++ b/HowToWriteTests.md
@@ -27,6 +27,8 @@ class T(TestCase):
 
 Now run it!
 
+# no mocks policy
+
 You may notice some existing tests use the `mock` module.
 We are phasing out this style of testing (<https://nedbatchelder.com/blog/201206/tldw_stop_mocking_start_testing.html>, <https://martinfowler.com/articles/mocksArentStubs.html>).
 Please do not use it in new tests.