1 files changed, 4 insertions, 1 deletions
diff --git a/gtk2_ardour/midi_streamview.h b/gtk2_ardour/midi_streamview.h
index 1e6289d63c..b3506d4224 100644
--- a/gtk2_ardour/midi_streamview.h
+++ b/gtk2_ardour/midi_streamview.h
@@ -27,7 +27,6 @@
 #include "streamview.h"
 #include "time_axis_view_item.h"
 #include "route_time_axis.h"
-#include "canvas.h"
 
 namespace Gdk {
 	class Color;
@@ -42,6 +41,10 @@ namespace ARDOUR {
 	struct PeakData;
 }
 
+namespace ArdourCanvas {
+	class LineSet;
+}
+
 class PublicEditor;
 class Selectable;
 class MidiTimeAxisView;