diff --git a/GPy/kern/src/shapeintegrals.py b/GPy/kern/src/shapeintegrals.py
index adf3eefe..908efbd3 100644
--- a/GPy/kern/src/shapeintegrals.py
+++ b/GPy/kern/src/shapeintegrals.py
@@ -6,7 +6,6 @@ from .kern import Kern
 from ...core.parameterization import Param
 from paramz.transformations import Logexp
 import math
-from rbf import RBF
 from scipy.misc import factorial