diff --git a/NewbieDeveloperSetup.md b/NewbieDeveloperSetup.md
index 92cd3bc..a65fd00 100644
--- a/NewbieDeveloperSetup.md
+++ b/NewbieDeveloperSetup.md
@@ -23,7 +23,7 @@ sudo apt-get install git
 
 5. Hack as if there was no tomorrow :)
 
-6. Run the tests
+6. Run the tests (watch out #2129)
 ```
  $ python setup.py trial
 ```