diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py
index c0f5f6e2eefb5a3684a91c77773f20f60855a195..026eeeaf523fa9c0cd6511afa051c6d753329a25 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py
@@ -27,6 +27,10 @@ conddb.addFolderWithTag("TRT_OFL","/TRT/Cond/DigVers","TRTCondDigVers-Collisions
 printfunc ("RT OVERRIDE, for CONDBR2-BLKPA-2015-12")
 #See https://atlas-tagservices.cern.ch/tagservices/RunBrowser/runBrowserReport/rBR_CB_Report.php?CBAction=GlobalTagReport&cbgt=CONDBR2-BLKPA-2015-15#INDET
 
+# Required for older global conditions tags after https://gitlab.cern.ch/atlas/athena/-/merge_requests/49827 is merged
+conddb.addOverride("/TRT/Calib/PID_NN", "TRTCalibPID_NN_v1")
+conddb.addOverride("/TRT/Onl/Calib/PID_NN", "TRTCalibPID_NN_v1")
+
 ###These are not really needed anymore during overlay. Setup in muAlign_reco.py for reco.
 #TRT T0 constants
 #conddb.blockFolder("/TRT/Calib/T0")