diff --git a/HowtoContributeABuildbot.md b/HowtoContributeABuildbot.md
index 3e44d8f..73f7503 100644
--- a/HowtoContributeABuildbot.md
+++ b/HowtoContributeABuildbot.md
@@ -4,7 +4,7 @@
 ## Configuration
 > Create a user account with low privileges to run buildbot. 
 
-### Optional Configurations
+#### Optional Configurations
 > You can use other mechanisms to lock buildbot down like jail, chroot, etc.  David Abrahams uses Solaris Zones to contain his buildslaves.  Brian Warner and the other buildbot maintainers have been hacking on some tricks to set up your buildslaves inside a full virtual machine so that you can have a pristine machine for every build.
 
 Step 3: choose a name for your buildslave which will fit into the