diff --git a/DDG4/python/DDSim/DD4hepSimulation.py b/DDG4/python/DDSim/DD4hepSimulation.py
index f119dec879a5e318eafe01ef37d14ca5eb9cbd3e..35dc29804c801ee335ec7ea1f78e374180defbb7 100644
--- a/DDG4/python/DDSim/DD4hepSimulation.py
+++ b/DDG4/python/DDSim/DD4hepSimulation.py
@@ -732,6 +732,7 @@ SIM = DD4hepSimulation()
     if have_mctruth:
       gen = GeneratorAction(simple.kernel(), "Geant4PrimaryHandler/PrimaryHandler")
       gen.RejectPDGs = ConfigHelper.makeString(self.physics.rejectPDGs)
+      gen.ZeroTimePDGs = ConfigHelper.makeString(self.physics.zeroTimePDGs)
       gen.enableUI()
       if output_level is not None:
         gen.OutputLevel = output_level