diff --git a/GPy/testing/plotting_tests.py b/GPy/testing/plotting_tests.py
index 28eb5c8d..e60928a7 100644
--- a/GPy/testing/plotting_tests.py
+++ b/GPy/testing/plotting_tests.py
@@ -101,7 +101,9 @@ def test_kernel():
     matplotlib.rcParams[u'text.usetex'] = False
     k = GPy.kern.RBF(5, ARD=True) + GPy.kern.Linear(3, active_dims=[0,2,4], ARD=True) + GPy.kern.Bias(2)
     k.randomize()
-    k.plot_ARD(legend=True)
+    k2 = GPy.kern.RBF(5, ARD=True) + GPy.kern.Linear(3, active_dims=[0,2,4], ARD=True) + GPy.kern.Bias(2) + GPy.kern.White(4)
+    k2[:-1] = k[:]
+    k2.plot_ARD([k2.white.name], legend=True)
     for do_test in _image_comparison(
             baseline_images=['kern_{}'.format(sub) for sub in ["ARD",]],
             extensions=extensions):