diff --git a/DEF-files/HMS/PRODUCTION/CER/hcer_histos.def b/DEF-files/HMS/PRODUCTION/CER/hcer_histos.def
index deb6be7d2fa5d7f2675f331c9f9ce802f9ad035d..a9791ff10d809eb682ada1d4777fa23e209fdec9 100644
--- a/DEF-files/HMS/PRODUCTION/CER/hcer_histos.def
+++ b/DEF-files/HMS/PRODUCTION/CER/hcer_histos.def
@@ -3,7 +3,7 @@
 #********************
 
 # HMS CER GOOD Pulse Profile
-TH2F hcer_good_pped_vs_pmt 'HMS Cherenkov Good Pulse Pedestal vs. PMT Number; PMT Number; Pulse Pedestal / mV' [I+1] H.cer.goodAdcPed 2 0.5 2.5 200 0 200
+TH2F hcer_good_pped_vs_pmt 'HMS Cherenkov Good Pulse Pedestal vs. PMT Number; PMT Number; Pulse Pedestal / mV' [I+1] H.cer.goodAdcPed 2 0.5 2.5 200 0 200 H.cer.goodAdcPed>0.0
 
 # HMS CER Good Occupancy and Multiplity
 TH1F hcer_good_occ 'HMS Cherenkov Good Occupancy; PMT Number; Number of Entries' H.cer.numGoodAdcHits 2 0.5 2.5
diff --git a/DEF-files/SHMS/PRODUCTION/HGCER/phgcer_histos.def b/DEF-files/SHMS/PRODUCTION/HGCER/phgcer_histos.def
index 11109317aad6277e06392b2a78e6253e7be025f8..b172cf4a31d507a73fc65d5bf475f342c518cb85 100644
--- a/DEF-files/SHMS/PRODUCTION/HGCER/phgcer_histos.def
+++ b/DEF-files/SHMS/PRODUCTION/HGCER/phgcer_histos.def
@@ -6,7 +6,7 @@
 # SHMS HGC FADC/NPE MONITORING
 #------------------------------
 
-TH2F phgcer_good_pped_vs_pmt 'SHMS Heavy Gas Cherenkov Good Pulse Pedestal vs. PMT Number; PMT Number; Pulse Pedestal / 2 mV' [I+1] P.hgcer.goodAdcPed 4 0.5 4.5 500 0 1000
+TH2F phgcer_good_pped_vs_pmt 'SHMS Heavy Gas Cherenkov Good Pulse Pedestal vs. PMT Number; PMT Number; Pulse Pedestal / 2 mV' [I+1] P.hgcer.goodAdcPed 4 0.5 4.5 500 0 1000  P.hgcer.goodAdcPed>0.0
 
 TH1F phgcer_good_occ 'SHMS Heavy Gas Cherenkov Good Occupancy; PMT Number; Number Good ADC Hits' P.hgcer.numGoodAdcHits 4 0.5 4.5
 TH1F phgcer_good_mult 'SHMS Heavy Gas Cherenkov Good Multiplicity; Number of PMTs Hit; Total Number of Good ADC Hits' P.hgcer.totNumGoodAdcHits 4 0.5 4.5
diff --git a/DEF-files/SHMS/PRODUCTION/NGCER/pngcer_histos.def b/DEF-files/SHMS/PRODUCTION/NGCER/pngcer_histos.def
index 35f2979e1bd8abb25116311bb94318695a204bd7..2c8ec61c7b4743733d0142714cf1e33c17bcc018 100644
--- a/DEF-files/SHMS/PRODUCTION/NGCER/pngcer_histos.def
+++ b/DEF-files/SHMS/PRODUCTION/NGCER/pngcer_histos.def
@@ -6,7 +6,7 @@
 # SHMS NGC FADC/NPE MONITORING
 #-----------------------------
 
-TH2F pngcer_good_pped_vs_pmt 'SHMS Noble Gas Cherenkov Good Pulse Pedestal vs. PMT Number; PMT Number; Pulse Pedestal / 2 mV' [I+1] P.ngcer.goodAdcPed 4 0.5 4.5 500 0 1000
+TH2F pngcer_good_pped_vs_pmt 'SHMS Noble Gas Cherenkov Good Pulse Pedestal vs. PMT Number; PMT Number; Pulse Pedestal / 2 mV' [I+1] P.ngcer.goodAdcPed 4 0.5 4.5 500 0 1000  P.ngcer.goodAdcPed>0.0
 
 TH1F pngcer_good_occ 'SHMS Noble Gas Cherenkov Good Occupancy; PMT Number; Number of Good ADC Hits' P.ngcer.numGoodAdcHits 4 0.5 4.5
 TH1F pngcer_good_mult 'SHMS Noble Gas Cherenkov Good Multiplicity; Number of PMTs Hit; Total Number of Good ADC Hits' P.ngcer.totNumGoodAdcHits 4 0.5 4.5