diff --git a/GPy/core/parameterization/param.py b/GPy/core/parameterization/param.py
index cd1ce39e..b5507dec 100644
--- a/GPy/core/parameterization/param.py
+++ b/GPy/core/parameterization/param.py
@@ -135,7 +135,6 @@ class Param(OptimizationHandlable, ObservableArray):
         constr = self.constraints.copy()
         priors = self.priors.copy()
         p = Param(self.name, self.view(numpy.ndarray).copy(), self._default_constraint_)
-        import ipdb;ipdb.set_trace()
         p.constraints = constr
         p.priors = priors
         return p
diff --git a/GPy/core/parameterization/parameter_core.py b/GPy/core/parameterization/parameter_core.py
index d2f066ff..6dd0b389 100644
--- a/GPy/core/parameterization/parameter_core.py
+++ b/GPy/core/parameterization/parameter_core.py
@@ -376,7 +376,7 @@ class Constrainable(Nameable, Indexable):
         # Ensure that the fixes array is set:
         # Parameterized: ones(self.size)
         # Param: ones(self._realsize_
-        if not self._has_fixes(): self._fixes_ = np.ones(self.size, dtype=bool)
+        self._fixes_ = np.ones(self.size, dtype=bool)
 
     def _set_fixed(self, index):
         self._ensure_fixes()
diff --git a/GPy/testing/parameterized_tests.py b/GPy/testing/parameterized_tests.py
index 9a74ea46..26afef41 100644
--- a/GPy/testing/parameterized_tests.py
+++ b/GPy/testing/parameterized_tests.py
@@ -51,7 +51,8 @@ class ParameterizedTest(unittest.TestCase):
         self.white.fix(warning=False)
         self.test1.remove_parameter(self.test1.param)
         self.assertTrue(self.test1._has_fixes())
-
+        import ipdb;ipdb.set_trace()
+        
         from GPy.core.parameterization.transformations import FIXED, UNFIXED
         self.assertListEqual(self.test1._fixes_.tolist(),[UNFIXED,UNFIXED,FIXED])
 
@@ -67,12 +68,12 @@ class ParameterizedTest(unittest.TestCase):
         self.assertListEqual(self.white._fixes_.tolist(), [FIXED])
         self.assertEquals(self.white.constraints._offset, 0)
         self.assertIs(self.test1.constraints, self.rbf.constraints._param_index_ops)
-        self.assertIs(self.test1.constraints, self.param.constraints._param_index_ops)        
+        self.assertIs(self.test1.constraints, self.param.constraints._param_index_ops)
 
         self.test1.add_parameter(self.white, 0)
         self.assertIs(self.test1.constraints, self.white.constraints._param_index_ops)
         self.assertIs(self.test1.constraints, self.rbf.constraints._param_index_ops)
-        self.assertIs(self.test1.constraints, self.param.constraints._param_index_ops)        
+        self.assertIs(self.test1.constraints, self.param.constraints._param_index_ops)
         self.assertListEqual(self.test1.constraints[__fixed__].tolist(), [0])
         self.assertIs(self.white._fixes_,None)
         self.assertListEqual(self.test1._fixes_.tolist(),[FIXED] + [UNFIXED] * 52)
@@ -85,7 +86,7 @@ class ParameterizedTest(unittest.TestCase):
         self.assertListEqual(self.test1.constraints[Logexp()].tolist(), [0,1])
 
     def test_add_parameter_already_in_hirarchy(self):
-        self.assertRaises(HierarchyError, self.test1.add_parameter, self.white._parameters_[0])        
+        self.assertRaises(HierarchyError, self.test1.add_parameter, self.white._parameters_[0])
 
     def test_default_constraints(self):
         self.assertIs(self.rbf.variance.constraints._param_index_ops, self.rbf.constraints._param_index_ops)