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-rw-r--r--gtk2_ardour/gain_meter.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/gtk2_ardour/gain_meter.cc b/gtk2_ardour/gain_meter.cc
index 7e781cafd9..76a7c3540e 100644
--- a/gtk2_ardour/gain_meter.cc
+++ b/gtk2_ardour/gain_meter.cc
@@ -54,6 +54,7 @@
#include "i18n.h"
using namespace ARDOUR;
+using namespace ARDOUR_UI_UTILS;
using namespace PBD;
using namespace Gtkmm2ext;
using namespace Gtk;