diff --git a/Tools/Tier0ChainTests/test/test_q220.sh b/Tools/Tier0ChainTests/test/test_q220.sh
index db81ad700c27b095d568fdf3ce3c0bb2aeadd5f0..bfd458d14be106f9abebceb0ebfcbd60c88065c6 100755
--- a/Tools/Tier0ChainTests/test/test_q220.sh
+++ b/Tools/Tier0ChainTests/test/test_q220.sh
@@ -8,8 +8,7 @@
 # art-include: 21.3/Athena
 # art-include: 21.9/Athena
 
-#This test currently has the muon isolation reconstruction switched off. It should be switched back on at a later date. 
-Reco_tf.py --AMI=q220 --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --outputHISTFile=myHIST.root --imf False --preExec "r2e:from MuonRecExample.MuonRecFlags import muonRecFlags; muonRecFlags.doMuonIso.set_Value_and_Lock(False)"
+Reco_tf.py --AMI=q220 --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --outputHISTFile=myHIST.root --imf False
 echo "art-result: $?"
 
 ArtPackage=$1
diff --git a/Tools/Tier0ChainTests/test/test_q220_mp.sh b/Tools/Tier0ChainTests/test/test_q220_mp.sh
index 2c20aea4116f814d732862e54e44e6b866a90b75..0ab3fea359cd1dcb31cc309d6db6c2c463033af2 100755
--- a/Tools/Tier0ChainTests/test/test_q220_mp.sh
+++ b/Tools/Tier0ChainTests/test/test_q220_mp.sh
@@ -8,7 +8,7 @@
 # art-include: 21.3/Athena
 # art-include: 21.9/Athena
 
-Reco_tf.py --AMI=q220 --athenaopts='--nprocs=2' --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --outputHISTFile=myHIST.root --imf False --preExec "r2e:from MuonRecExample.MuonRecFlags import muonRecFlags; muonRecFlags.doMuonIso.set_Value_and_Lock(False)"
+Reco_tf.py --AMI=q220 --athenaopts='--nprocs=2' --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --outputHISTFile=myHIST.root --imf False
 echo "art-result: $?"
 
 ArtPackage=$1
diff --git a/Tools/Tier0ChainTests/test/test_q220_mt.sh b/Tools/Tier0ChainTests/test/test_q220_mt.sh
index 122d87b9762da7be4c9bb4a7b77827c1502c7ec5..8d00ae6d8a2ccf86a5d8ea6da5cc69f1cdfcc6b5 100755
--- a/Tools/Tier0ChainTests/test/test_q220_mt.sh
+++ b/Tools/Tier0ChainTests/test/test_q220_mt.sh
@@ -8,7 +8,7 @@
 # art-include: 21.3/Athena
 # art-include: 21.9/Athena
 
-Reco_tf.py --AMI=q220 --athenaopts='--threads=1' --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --imf False --preExec "r2e:from MuonRecExample.MuonRecFlags import muonRecFlags; muonRecFlags.doMuonIso.set_Value_and_Lock(False)"
+Reco_tf.py --AMI=q220 --athenaopts='--threads=1' --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --imf False
 echo "art-result: $?"
 
 ArtPackage=$1