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-rw-r--r--gtk2_ardour/ghostregion.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/gtk2_ardour/ghostregion.h b/gtk2_ardour/ghostregion.h
index 2ebd33e64e..103d7ecf97 100644
--- a/gtk2_ardour/ghostregion.h
+++ b/gtk2_ardour/ghostregion.h
@@ -37,7 +37,7 @@ namespace Gnome {
class MidiStreamView;
class TimeAxisView;
-class GhostRegion
+class GhostRegion : public sigc::trackable
{
public:
GhostRegion(ArdourCanvas::Group* parent, TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos);