diff --git a/Readme.md b/Readme.md
index c5b6f84..dcdb68f 100644
--- a/Readme.md
+++ b/Readme.md
@@ -17,6 +17,7 @@ There are a few basic ground-rules for contributors:
 1. **External API changes and significant modifications** ought to be subject to an **internal pull-request** to solicit feedback from other contributors.
 1. Internal pull-requests to solicit feedback are *encouraged* for any other non-trivial contribution but left to the discretion of the contributor.
 1. Contributors should attempt to adhere to the prevailing code-style.
+1. Don't break the test suite or CI build if the project has one.
 
 ## Releases