diff --git a/Event/xAOD/xAODTrigEgammaAthenaPool/src/xAODElectronTrigAuxContainerCnv.cxx b/Event/xAOD/xAODTrigEgammaAthenaPool/src/xAODElectronTrigAuxContainerCnv.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..f073907e3be15aad1b7d666cac32e643f0dda8e8
--- /dev/null
+++ b/Event/xAOD/xAODTrigEgammaAthenaPool/src/xAODElectronTrigAuxContainerCnv.cxx
@@ -0,0 +1,6 @@
+/*
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+*/
+
+// Dummy file so that cmake will know this is a custom converter.
+//  xAODElectronTrigAuxContainerCnv.h
diff --git a/Event/xAOD/xAODTrigEgammaAthenaPool/src/xAODPhotonTrigAuxContainerCnv.cxx b/Event/xAOD/xAODTrigEgammaAthenaPool/src/xAODPhotonTrigAuxContainerCnv.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..6fc2bb60a0a8c1a9e5ff4dee04712c67a833da6f
--- /dev/null
+++ b/Event/xAOD/xAODTrigEgammaAthenaPool/src/xAODPhotonTrigAuxContainerCnv.cxx
@@ -0,0 +1,6 @@
+/*
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+*/
+
+// Dummy file so that cmake will know this is a custom converter.
+//  xAODPhotonTrigAuxContainerCnv.h
diff --git a/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRNNOutputAuxContainerCnv.cxx b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRNNOutputAuxContainerCnv.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..b57e51a509667c53ea2bfb50da6870191881b8f0
--- /dev/null
+++ b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRNNOutputAuxContainerCnv.cxx
@@ -0,0 +1,6 @@
+/*
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+*/
+
+// Dummy file so that cmake will know this is a custom converter.
+//  xAODTrigRNNOutputAuxContainerCnv.cxx
diff --git a/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRNNOutputContainerCnv.cxx b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRNNOutputContainerCnv.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..8e11620904246c88fdce90747957cecff1d4c315
--- /dev/null
+++ b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRNNOutputContainerCnv.cxx
@@ -0,0 +1,6 @@
+/*
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+*/
+
+// Dummy file so that cmake will know this is a custom converter.
+//  xAODTrigRNNOutputContainerCnv.cxx
diff --git a/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRingerRingsAuxContainerCnv.cxx b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRingerRingsAuxContainerCnv.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..878bf01075cac1c9766e2735cca998f451350b7c
--- /dev/null
+++ b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRingerRingsAuxContainerCnv.cxx
@@ -0,0 +1,6 @@
+/*
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+*/
+
+// Dummy file so that cmake will know this is a custom converter.
+//  xAODTrigRingerRingsAuxContainerCnv.cxx
diff --git a/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRingerRingsContainerCnv.cxx b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRingerRingsContainerCnv.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..d18d71a48f631d2ddd29693009cdf023ae91289c
--- /dev/null
+++ b/Event/xAOD/xAODTrigRingerAthenaPool/src/xAODTrigRingerRingsContainerCnv.cxx
@@ -0,0 +1,6 @@
+/*
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+*/
+
+// Dummy file so that cmake will know this is a custom converter.
+//  xAODTrigRingerRingsContainerCnv.cxx