diff --git a/GPy/testing/inference_tests.py b/GPy/testing/inference_tests.py
index e09df1fe..cd85235d 100644
--- a/GPy/testing/inference_tests.py
+++ b/GPy/testing/inference_tests.py
@@ -13,6 +13,7 @@ import GPy
 class InferenceXTestCase(unittest.TestCase):
 
     def genData(self):
+        np.random.seed(1)
         D1,D2,N = 12,12,50
 
         x = np.linspace(0, 4 * np.pi, N)[:, None]
diff --git a/GPy/testing/link_function_tests.py b/GPy/testing/link_function_tests.py
index e8cbbf66..9a923d48 100644
--- a/GPy/testing/link_function_tests.py
+++ b/GPy/testing/link_function_tests.py
@@ -7,6 +7,7 @@ _lim_val_exp = np.log(_lim_val)
 _lim_val_square = np.sqrt(_lim_val)
 _lim_val_cube = cbrt(_lim_val)
 from GPy.likelihoods.link_functions import Identity, Probit, Cloglog, Log, Log_ex_1, Reciprocal, Heaviside
+#np.seterr(over='raise')
 
 class LinkFunctionTests(np.testing.TestCase):
     def setUp(self):