diff --git a/GPy/likelihoods/skew_normal.py b/GPy/likelihoods/skew_normal.py
index a31842db..6f400c7b 100644
--- a/GPy/likelihoods/skew_normal.py
+++ b/GPy/likelihoods/skew_normal.py
@@ -11,7 +11,6 @@ except ImportError:
     sympy_available=False
 
 import numpy as np
-from ..util.univariate_Gaussian import std_norm_pdf, std_norm_cdf
 from GPy.util.functions import clip_exp
 import link_functions
 from symbolic import Symbolic