diff --git a/NPSimulation/Process/PhysicsList.cc b/NPSimulation/Process/PhysicsList.cc
index cd31f68fc05934cba0435b23d3082b26e84c0f6e..fd89a2f8766854acb7bdeb0a57a17ad9014feb02 100644
--- a/NPSimulation/Process/PhysicsList.cc
+++ b/NPSimulation/Process/PhysicsList.cc
@@ -426,8 +426,14 @@ void PhysicsList::ConstructProcess(){
 
   em_parameters->SetFluo(true);
   em_parameters->SetAuger(true);
+
+#if NPS_GEANT4_VERSION_MAJOR > 10
+#if NPS_GEANT4_VERSION_MINOR > 2
   em_parameters->SetDeexActiveRegion ("DefaultRegionForTheWorld", true, true,true);
   em_parameters->SetDeexcitationIgnoreCut(true);
+#endif
+#endif
+
   AddParametrisation();
   AddLevelData();
   return;