diff --git a/libs/ardour/transport_master.cc b/libs/ardour/transport_master.cc
index bec436b060..36679ff3ed 100644
--- a/libs/ardour/transport_master.cc
+++ b/libs/ardour/transport_master.cc
@@ -351,6 +351,9 @@ TransportMaster::factory (XMLNode const & node)
 	if (type == Engine) {
 		return std::shared_ptr<TransportMaster>();
 	}
+	if (type == MIDIClock) {
+		return std::shared_ptr<TransportMaster>();
+	}
 #endif
 
 	if (!node.get_property (X_("name"), name)) {
diff --git a/libs/ardour/transport_master_manager.cc b/libs/ardour/transport_master_manager.cc
index db7224770b..92b9ac2a49 100644
--- a/libs/ardour/transport_master_manager.cc
+++ b/libs/ardour/transport_master_manager.cc
@@ -86,7 +86,9 @@ TransportMasterManager::set_default_configuration ()
 #endif
 		add (MTC, X_("MTC"), false);
 		add (LTC, X_("LTC"), false);
+#ifndef LIVETRAX
 		add (MIDIClock, X_("MIDI Clock"), false);
+#endif
 
 	} catch (...) {
 		return -1;