diff --git a/Simulation/SimulationJobOptions/share/g4/preInclude.G4Optimizations.py b/Simulation/SimulationJobOptions/share/g4/preInclude.G4Optimizations.py
index db824e7f8d78b009ef5a8d03bacfec22e0c2f5bf..d6f9acc2a0dfcbea709b84928c20bdf59fbf203a 100644
--- a/Simulation/SimulationJobOptions/share/g4/preInclude.G4Optimizations.py
+++ b/Simulation/SimulationJobOptions/share/g4/preInclude.G4Optimizations.py
@@ -84,3 +84,16 @@ else:
 from G4AtlasApps import callbacks
 callbacks.turn_on_gamma_range_cuts()
 
+
+##########################################################
+#
+# Activate the G4GammaGeneralProcess and the corresponding
+# job options
+#  
+##########################################################
+
+from G4AtlasApps.SimFlags import simFlags
+simFlags.G4Commands+=["/process/em/UseGeneralProcess true"];
+simFlags.OptionalUserActionList.addAction("G4UA::FixG4CreatorProcessTool")
+
+