diff --git a/opm/core/grid/cart_grid.c b/opm/core/grid/cart_grid.c
index 50e75063..2847e1fd 100644
--- a/opm/core/grid/cart_grid.c
+++ b/opm/core/grid/cart_grid.c
@@ -174,7 +174,7 @@ allocate_cart_grid(size_t ndims ,
 
     nfacenodes = nfaces * (2 * (ndims - 1));
     ncellfaces = ncells * (2 * ndims);
-    
+
     return allocate_grid(ndims, ncells, nfaces,
                          nfacenodes, ncellfaces, nnodes);
 }