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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 f77a1049e0..95e41b5ee6 100644
--- a/gtk2_ardour/gain_meter.cc
+++ b/gtk2_ardour/gain_meter.cc
@@ -58,6 +58,7 @@ using namespace Gtkmm2ext;
using namespace Gtk;
using namespace sigc;
using namespace std;
+using Gtkmm2ext::Keyboard;
sigc::signal<void> GainMeterBase::ResetAllPeakDisplays;
sigc::signal<void,RouteGroup*> GainMeterBase::ResetGroupPeakDisplays;