diff --git a/devito/mpi/halo_scheme.py b/devito/mpi/halo_scheme.py
index 0952e91904f..b8b689296f1 100644
--- a/devito/mpi/halo_scheme.py
+++ b/devito/mpi/halo_scheme.py
@@ -287,7 +287,6 @@ def omapper(self):
         ranks*, so the output of this method is guaranteed to be consistent
         across *all MPI ranks*.
         """
-
         items = [((d, CENTER), (d, LEFT), (d, RIGHT))
                  for d in filter_sorted(self.dimensions)]