diff --git a/GPy/kern/src/rbf.py b/GPy/kern/src/rbf.py
index a51a4ba4..256149b8 100644
--- a/GPy/kern/src/rbf.py
+++ b/GPy/kern/src/rbf.py
@@ -7,7 +7,7 @@ from .stationary import Stationary
 from .psi_comp import PSICOMP_RBF, PSICOMP_RBF_GPU
 from ...core import Param
 from paramz.transformations import Logexp
-from .gridKerns import GridRBF
+from .grid_kerns import GridRBF
 
 class RBF(Stationary):
     """