diff --git a/python/dune/codegen/sumfact/realization.py b/python/dune/codegen/sumfact/realization.py
index 78959b0bd00d2f7cf7cc979a461017780bc98e15..ce4393ef9df860c7187fcbaf13d3701061a3bec3 100644
--- a/python/dune/codegen/sumfact/realization.py
+++ b/python/dune/codegen/sumfact/realization.py
@@ -24,8 +24,7 @@ from dune.codegen.options import (get_form_option,
                                   get_option,
                                   )
 from dune.codegen.pdelab.signatures import assembler_routine_name
-from dune.codegen.sumfact.permutation import (sumfact_permutation_strategy,
-                                              permute_backward,
+from dune.codegen.sumfact.permutation import (permute_backward,
                                               permute_forward,
                                               )
 from dune.codegen.sumfact.quadrature import quadrature_points_per_direction