diff --git a/GPy/core/gp.py b/GPy/core/gp.py
index 060b617a..6d9ed75d 100644
--- a/GPy/core/gp.py
+++ b/GPy/core/gp.py
@@ -56,7 +56,7 @@ class GP(Model):
         self.add_parameter(self.kern)
         self.add_parameter(self.likelihood)
 
-        self.parameters_changed()
+        #self.parameters_changed()
 
     def parameters_changed(self):
         self.posterior, self._log_marginal_likelihood, grad_dict = self.inference_method.inference(self.kern, self.X, self.likelihood, self.Y)
diff --git a/GPy/core/sparse_gp.py b/GPy/core/sparse_gp.py
index ab1f3bf0..3a6a98cb 100644
--- a/GPy/core/sparse_gp.py
+++ b/GPy/core/sparse_gp.py
@@ -51,11 +51,8 @@ class SparseGP(GP):
         self.X_variance = X_variance
 
         GP.__init__(self, X, Y, kernel, likelihood, inference_method=inference_method, name=name)
-
         self.Z = Param('inducing inputs', self.Z)
         self.add_parameter(self.Z, index=0)
-        self.add_parameter(self.kern)
-        self.add_parameter(self.likelihood)
 
     def parameters_changed(self):
         self.posterior, self._log_marginal_likelihood, self.grad_dict = self.inference_method.inference(self.kern, self.X, self.X_variance, self.Z, self.likelihood, self.Y)