diff --git a/GPy/mappings/__init__.py b/GPy/mappings/__init__.py
index 39568c9f..73390b87 100644
--- a/GPy/mappings/__init__.py
+++ b/GPy/mappings/__init__.py
@@ -7,4 +7,6 @@ from .mlp import MLP
 from .additive import Additive
 from .compound import Compound
 from .constant import Constant
+from .identity import Identity
+from .piecewise_linear import PiecewiseLinear