diff --git a/DDG4/python/DDG4Dict.C b/DDG4/python/DDG4Dict.C
index 206e2baaafb3a41e2fba68df1009cb14bf6af4c4..73b3e32b2ec3dcbf3c5b2bbb6a60c8ea60c07680 100644
--- a/DDG4/python/DDG4Dict.C
+++ b/DDG4/python/DDG4Dict.C
@@ -232,7 +232,7 @@ typedef dd4hep::sim::Geant4ActionCreation Geant4ActionCreation;
 #pragma link C++ typedef dd4hep::sim::Geant4ParticleIntMap;
 
 #pragma link C++ class dd4hep::sim::PropertyResult;
-#pragma link C++ class dd4hep::sim::Geant4InputAction::Particles;
+//#pragma link C++ class dd4hep::sim::Geant4InputAction::Particles; // same as std::vector<dd4hep::sim::Geant4Particle*>
 
 #pragma link C++ class dd4hep::sim::Geant4ParticleHandle;
 #pragma link C++ class dd4hep::sim::Geant4ParticleMap;