diff --git a/k4MarlinWrapper/src/components/EDM4hep2Lcio.cpp b/k4MarlinWrapper/src/components/EDM4hep2Lcio.cpp
index 1d4b883d..52e49002 100644
--- a/k4MarlinWrapper/src/components/EDM4hep2Lcio.cpp
+++ b/k4MarlinWrapper/src/components/EDM4hep2Lcio.cpp
@@ -320,7 +320,7 @@ StatusCode EDM4hep2LcioTool::convertCollections(lcio::LCEventImpl* lcio_event) {
   // Start off with the pre-defined collection name mappings
   auto collsToConvert{m_collNames.value()};
   // We *always* want to convert the EventHeader
-  collsToConvert.emplace("EventHeader", "EventHeader");
+  collsToConvert.emplace(edm4hep::EventHeaderName, "");
   if (m_convertAll) {
     info() << "Converting all collections from EDM4hep to LCIO" << endmsg;
     // And simply add the rest, exploiting the fact that emplace will not
diff --git a/k4MarlinWrapper/src/components/Lcio2EDM4hep.cpp b/k4MarlinWrapper/src/components/Lcio2EDM4hep.cpp
index e5cadfdf..d0f7222e 100644
--- a/k4MarlinWrapper/src/components/Lcio2EDM4hep.cpp
+++ b/k4MarlinWrapper/src/components/Lcio2EDM4hep.cpp
@@ -143,8 +143,8 @@ namespace {
 
 StatusCode Lcio2EDM4hepTool::convertCollections(lcio::LCEventImpl* the_event) {
   // Convert Event Header outside the collections loop
-  if (!collectionExist("EventHeader")) {
-    registerCollection("EventHeader", LCIO2EDM4hepConv::createEventHeader(the_event));
+  if (!collectionExist(edm4hep::EventHeaderName)) {
+    registerCollection(edm4hep::EventHeaderName, LCIO2EDM4hepConv::createEventHeader(the_event));
   }
 
   // Start off with the pre-defined collection name mappings