1 files changed, 3 insertions, 3 deletions
diff --git a/gtk2_ardour/midi_streamview.h b/gtk2_ardour/midi_streamview.h
index aceb59e69f..d216752eda 100644
--- a/gtk2_ardour/midi_streamview.h
+++ b/gtk2_ardour/midi_streamview.h
@@ -34,12 +34,12 @@ namespace Gdk {
 }
 
 namespace ARDOUR {
-	class Route;
 	class Crossfade;
-	class PeakData;
+	class MidiModel;
 	class MidiRegion;
+	class Route;
 	class Source;
-	class MidiModel;
+	struct PeakData;
 }
 
 class PublicEditor;