diff --git a/PhysicsTools/PatAlgos/python/slimming/MicroEventContent_cff.py b/PhysicsTools/PatAlgos/python/slimming/MicroEventContent_cff.py
index 5035ec39e78e4..36fd90952d95e 100644
--- a/PhysicsTools/PatAlgos/python/slimming/MicroEventContent_cff.py
+++ b/PhysicsTools/PatAlgos/python/slimming/MicroEventContent_cff.py
@@ -162,7 +162,7 @@
                                         # RUN
                                         'keep L1GtTriggerMenuLite_l1GtTriggerMenuLite__*'
                                       ]
-_pp_on_AA_MC_extraCommands = ['keep *_packedGenParticlesSignal_*_*']
+_pp_on_AA_MC_extraCommands = ['keep *_packedGenParticlesSignal_*_*','keep edmGenHIEvent_heavyIon_*_*']
 pp_on_AA.toModify(MicroEventContentMC, outputCommands = MicroEventContentMC.outputCommands + _pp_on_AA_MC_extraCommands)
 
 from Configuration.Eras.Modifier_strips_vfp30_2016_cff import strips_vfp30_2016