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Diffstat (limited to 'gtk2_ardour/midi_channel_selector.h')
-rw-r--r--gtk2_ardour/midi_channel_selector.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/gtk2_ardour/midi_channel_selector.h b/gtk2_ardour/midi_channel_selector.h
index f10c128b92..3ec2cfbd2c 100644
--- a/gtk2_ardour/midi_channel_selector.h
+++ b/gtk2_ardour/midi_channel_selector.h
@@ -25,6 +25,7 @@
#include "sigc++/trackable.h"
#include "gtkmm/table.h"
+#include "gtkmm/box.h"
#include "gtkmm/button.h"
#include "gtkmm/radiobutton.h"
#include "gtkmm/label.h"