diff --git a/tox.ini b/tox.ini
index 5f3fee644c49..10685b6ac31b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,7 @@ skipsdist = True
 envlist = {py27}-{nosetest,pep8}, cover
 
 [testenv]
-passenv = PYTHONPATH TRAVIS*
+passenv = PYTHONPATH PROJECT_ID TRAVIS*
 basepython = 
     cover,py27: python2.7
 deps =