diff --git a/Calorimeter/CaloMonitoring/share/CaloBaselineMon_jobOpt.py b/Calorimeter/CaloMonitoring/share/CaloBaselineMon_jobOpt.py
index 7cc577f981c0807d3315ba7f9fef4a6706d3f82c..b9b151e9f74b7c6e4786ad7abe5f49781818640f 100644
--- a/Calorimeter/CaloMonitoring/share/CaloBaselineMon_jobOpt.py
+++ b/Calorimeter/CaloMonitoring/share/CaloBaselineMon_jobOpt.py
@@ -36,7 +36,7 @@ if rec.triggerStream()=='CosmicCalo':
 
 if rec.triggerStream()=='ZeroBias':
   tmp_CaloBaselineMon["bcidtoolMon_BCIDmax"] = 144
-  tmp_CaloBaselineMon["TriggerChain"] = ""
+  tmp_CaloBaselineMon["TriggerChain"] = "HLT_noalg_zb_L1ZB"
 
 CaloBaseline = CaloBaselineMon(
    name           = "CaloBaseline",