diff --git a/extra_packages/extra-materials/src/material_damage/material_damage_iterative_non_local.cc b/extra_packages/extra-materials/src/material_damage/material_damage_iterative_non_local.cc
index 5c0102369..485abb338 100644
--- a/extra_packages/extra-materials/src/material_damage/material_damage_iterative_non_local.cc
+++ b/extra_packages/extra-materials/src/material_damage/material_damage_iterative_non_local.cc
@@ -1,40 +1,40 @@
 /**
  * @file   material_damage_iterative.cc
  *
  * @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
  *
  *
  * @brief  Implementation of MaterialDamageIterativeNonLocal 
  *
  * @section LICENSE
  *
  * Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
  * Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
  *
  */
 
 /* -------------------------------------------------------------------------- */
 #include "material_damage_iterative_non_local.hh"
 
 namespace akantu {
 
 /* -------------------------------------------------------------------------- */
 template<UInt spatial_dimension>
 void MaterialDamageIterativeNonLocal<spatial_dimension>::computeNonLocalStresses(GhostType ghost_type) {
   AKANTU_DEBUG_IN();
   /// reset normalized maximum equivalent stress
   if(ghost_type==_not_ghost)
     this->norm_max_equivalent_stress = 0;
  
   MaterialDamageIterativeNonLocalParent::computeNonLocalStresses(ghost_type);
 
   /// find global Gauss point with highest stress
-  StaticCommunicator & comm = akantu::StaticCommunicator::getStaticCommunicator();
-  comm.allReduce(&(this->norm_max_equivalent_stress), 1, _so_max);
+  const auto & comm = this->model.getMesh().getCommunicator();
+  comm.allReduce(this->norm_max_equivalent_stress, SynchronizerOperation::_max);
 
   AKANTU_DEBUG_OUT();
 }
 /* -------------------------------------------------------------------------- */
-INSTANTIATE_MATERIAL(MaterialDamageIterativeNonLocal);
+INSTANTIATE_MATERIAL(damage_iterative_non_local, MaterialDamageIterativeNonLocal);
 
 } // namespace akantu