diff --git a/chapter_21_mocking_2.asciidoc b/chapter_21_mocking_2.asciidoc
index d16bb3e5..210007e5 100644
--- a/chapter_21_mocking_2.asciidoc
+++ b/chapter_21_mocking_2.asciidoc
@@ -130,6 +130,7 @@ class LoginViewTest(TestCase):
 <3> And here's where we check that we've been logged in,
     with a user with the right email address:
 
+// CSANAD consider `assertFalse` and `assertTrue`
 
 And that will fail as expected: