diff --git a/Configuration/PyReleaseValidation/python/relval_steps.py b/Configuration/PyReleaseValidation/python/relval_steps.py
index 4d8154a57b5bf..7b03712fafc39 100644
--- a/Configuration/PyReleaseValidation/python/relval_steps.py
+++ b/Configuration/PyReleaseValidation/python/relval_steps.py
@@ -1542,7 +1542,7 @@ def gen2018RD(fragment,howMuch):
 
 #Herwig7
 steps['TTbar_13TeV_Pow_herwig7']=genvalid('Configuration/Generator/python/TT_13TeV_Pow_Herwig7_cff',step1LHEGenDQM)
-steps['DYToLL012Jets_5FS_TuneCH3_13TeV_amcatnloFxFx_herwig7']=genvalid('Configuration/Generator/python/DYToLL012Jets_5FS_TuneCH3_13TeV_amcatnloFxFx_herwig7_cff',step1LHEGenDQM)
+steps['DYToLL012Jets_5FS_TuneCH3_13TeV_amcatnloFxFx_herwig7']=genvalid('Configuration/Generator/python/DYToLL012Jets_5FS_TuneCH3_13TeV_amcatnloFxFx_herwig7_cff',merge([{'-n':'12'},step1LHEGenDQM]))
 steps['DYToLL01234Jets_5FS_TuneCH3_13TeV_madgraphMLM_herwig7']=genvalid('Configuration/Generator/python/DYToLL01234Jets_5FS_TuneCH3_13TeV_madgraphMLM_herwig7_cff',step1LHEGenDQM)