diff --git a/GPy/core/gp_grid.py b/GPy/core/gp_grid.py
index 64815016..89b6cdec 100644
--- a/GPy/core/gp_grid.py
+++ b/GPy/core/gp_grid.py
@@ -18,8 +18,8 @@
 
 import numpy as np
 import scipy.linalg as sp
-from gp import GP
-from parameterization.param import Param
+from .gp import GP
+from .parameterization.param import Param
 from ..inference.latent_function_inference import gaussian_grid_inference
 from .. import likelihoods
 
diff --git a/GPy/inference/latent_function_inference/gaussian_grid_inference.py b/GPy/inference/latent_function_inference/gaussian_grid_inference.py
index aeefa8e7..04337e04 100644
--- a/GPy/inference/latent_function_inference/gaussian_grid_inference.py
+++ b/GPy/inference/latent_function_inference/gaussian_grid_inference.py
@@ -16,7 +16,7 @@
 #  publisher={IEEE}
 #}
 
-from grid_posterior import GridPosterior
+from .grid_posterior import GridPosterior
 import numpy as np
 from . import LatentFunctionInference
 log_2_pi = np.log(2*np.pi)
diff --git a/GPy/kern/src/grid_kerns.py b/GPy/kern/src/grid_kerns.py
index a043e159..ef18f1a9 100644
--- a/GPy/kern/src/grid_kerns.py
+++ b/GPy/kern/src/grid_kerns.py
@@ -4,7 +4,7 @@
 # Kurt Cutajar
 
 import numpy as np
-from stationary import Stationary
+from .stationary import Stationary
 from paramz.caching import Cache_this