diff --git a/travis_tests.py b/travis_tests.py
index 3c553c53..54eda2f9 100644
--- a/travis_tests.py
+++ b/travis_tests.py
@@ -38,5 +38,5 @@ matplotlib.rcParams[u'figure.figsize'] = (4,3)
 matplotlib.rcParams[u'text.usetex'] = False
 
 import nose
-nose.main('GPy', defaultTest='GPy/testing/plotting_tests.py')
+nose.main('GPy', defaultTest='GPy/testing/')