diff --git a/libs/ardour/ardour/types.h b/libs/ardour/ardour/types.h
index 612ca9aa3f..d65a114ccb 100644
--- a/libs/ardour/ardour/types.h
+++ b/libs/ardour/ardour/types.h
@@ -692,6 +692,12 @@ namespace ARDOUR {
 		SharePlaylist
 	};
 
+	enum MidiTrackNameSource {
+		SMFTrackNumber,
+		SMFTrackName,
+		SMFInstrumentName
+	};
+
 } // namespace ARDOUR