diff --git a/PhysicsTools/NanoAOD/python/jetsAK4_CHS_cff.py b/PhysicsTools/NanoAOD/python/jetsAK4_CHS_cff.py
index 49818f80bd811..fffe94aec8493 100644
--- a/PhysicsTools/NanoAOD/python/jetsAK4_CHS_cff.py
+++ b/PhysicsTools/NanoAOD/python/jetsAK4_CHS_cff.py
@@ -518,6 +518,7 @@ def nanoAOD_refineFastSim_bTagDeepFlav(process):
         eta  = Var("eta",  float,precision=12),
         phi = Var("phi", float, precision=12),
         area = Var("jetArea()", float, doc="jet catchment area, for JECs",precision=10),
+        EmEF = Var("chargedEmEnergyFraction()+neutralEmEnergyFraction()", float, doc="charged+neutral Electromagnetic Energy Fraction", precision=6),
     )
 )
 
diff --git a/PhysicsTools/NanoAOD/python/jetsAK4_Puppi_cff.py b/PhysicsTools/NanoAOD/python/jetsAK4_Puppi_cff.py
index 9ca6530aea4d3..5c4673adbe732 100644
--- a/PhysicsTools/NanoAOD/python/jetsAK4_Puppi_cff.py
+++ b/PhysicsTools/NanoAOD/python/jetsAK4_Puppi_cff.py
@@ -232,6 +232,7 @@ def nanoAOD_addDeepInfoAK4(process,addParticleNet,addRobustParTAK4=False):
         eta  = Var("eta",  float,precision=12),
         phi = Var("phi", float, precision=12),
         area = Var("jetArea()", float, doc="jet catchment area, for JECs",precision=10),
+        EmEF = Var("chargedEmEnergyFraction()+neutralEmEnergyFraction()", float, doc="charged+neutral Electromagnetic Energy Fraction", precision=6),
     )
 )
 
diff --git a/PhysicsTools/NanoAOD/python/nanoDQM_cfi.py b/PhysicsTools/NanoAOD/python/nanoDQM_cfi.py
index d57280f9d31a7..f81dd3f65004a 100644
--- a/PhysicsTools/NanoAOD/python/nanoDQM_cfi.py
+++ b/PhysicsTools/NanoAOD/python/nanoDQM_cfi.py
@@ -30,6 +30,7 @@
                 Plot1D('muonSubtrFactor', 'muonSubtrFactor', 20, 0, 1, '1-(muon-subtracted raw pt)/(raw pt)'),
                 Plot1D('phi', 'phi', 20, -3.14159, 3.14159, 'phi'),
                 Plot1D('rawPt', 'rawPt', 20, 5, 25, "pt()*jecFactor('Uncorrected')"),
+                Plot1D('EmEF', 'EmEF', 20, 0., 1., "charged+neutral Electromagnetic Energy Fraction"),
             )
         ),
         DeepMETResolutionTune = cms.PSet(