diff --git a/Reconstruction/Jet/JetRecConfig/share/JetRecTestCfg.py b/Reconstruction/Jet/JetRecConfig/share/JetRecTestCfg.py
index eb332bf7503bc020fd486243636a33ed87297f7e..4a73eacb0b4011fa4da70f37ab7080bc209e820d 100755
--- a/Reconstruction/Jet/JetRecConfig/share/JetRecTestCfg.py
+++ b/Reconstruction/Jet/JetRecConfig/share/JetRecTestCfg.py
@@ -146,7 +146,6 @@ if __name__=="__main__":
     
     # Config flags steer the job at various levels
     from AthenaConfiguration.AllConfigFlags import ConfigFlags
-    ConfigFlags.Input.isMC  = True
     ConfigFlags.Input.Files = args.filesIn.split(",")
 
     # Flags relating to multithreaded execution
@@ -172,6 +171,15 @@ if __name__=="__main__":
     from AthenaPoolCnvSvc.PoolReadConfig import PoolReadCfg
     cfg.merge(PoolReadCfg(ConfigFlags))
 
+    # Nowadays the jet calibration tool requires the EventInfo
+    # to be decorated with lumi info, which is not in Run 2 AODs
+    from LumiBlockComps.LuminosityCondAlgConfig import LuminosityCondAlgCfg
+    cfg.merge(LuminosityCondAlgCfg(ConfigFlags))
+
+    from AthenaConfiguration.ComponentFactory import CompFactory
+    muWriter = CompFactory.LumiBlockMuWriter("LumiBlockMuWriter",LumiDataKey="LuminosityCondData")
+    cfg.addEventAlgo(muWriter,"AthAlgSeq")
+
     # Add the components from our jet reconstruction job
     cfg.merge(JetRecTestCfg(jetdefs,ConfigFlags,args))