diff --git a/DDG4/plugins/Geant4OpticalPhotonPhysics.cpp b/DDG4/plugins/Geant4OpticalPhotonPhysics.cpp
index 52211d2c1f7ba8a1ad27eeac49a1de6c36c7a031..e67d5794d3f6040d82079d5171ec75058866d299 100644
--- a/DDG4/plugins/Geant4OpticalPhotonPhysics.cpp
+++ b/DDG4/plugins/Geant4OpticalPhotonPhysics.cpp
@@ -34,7 +34,6 @@
 #include "G4OpRayleigh.hh"
 #include "G4OpMieHG.hh"
 #include "G4OpBoundaryProcess.hh"
-#include "G4OpticalParameters.hh"
 #include "G4ParticleDefinition.hh"
 #include "G4ParticleTypes.hh"
 #include "G4ParticleTable.hh"