diff --git a/HACKING.rst b/HACKING.rst
index 3fa1ff5..e7e7651 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -11,6 +11,7 @@
 - [T102] Cannot import OpenStack python clients in tempest/api tests
 - [T104] Scenario tests require a services decorator
 - [T105] Unit tests cannot use setUpClass
+- [T106] vim configuration should not be kept in source files.
 
 Test Data/Configuration
 -----------------------