diff --git a/GPy/testing/rv_transformation_tests.py b/GPy/testing/rv_transformation_tests.py
index 40dcd11d..d0ce6d12 100644
--- a/GPy/testing/rv_transformation_tests.py
+++ b/GPy/testing/rv_transformation_tests.py
@@ -56,9 +56,10 @@ class RVTransformationTestCase(unittest.TestCase):
         #plt.show(block=True)
         # END OF PLOT
         # Check the gradients at a few random points
-        #np.random.seed(500)
+        np.random.seed(5)
         for i in range(5):
-            m.theta = theta_s[i]
+            #m.theta = theta_s[i]
+            m.randomize()
             self.assertTrue(m.checkgrad(verbose=True))
 
     def test_Logexp(self):