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-rw-r--r--gtk2_ardour/meter_bridge.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/gtk2_ardour/meter_bridge.cc b/gtk2_ardour/meter_bridge.cc
index 755058acb2..65434d5e82 100644
--- a/gtk2_ardour/meter_bridge.cc
+++ b/gtk2_ardour/meter_bridge.cc
@@ -32,6 +32,7 @@
#include "i18n.h"
using namespace ARDOUR;
+using namespace PBD;
using namespace Gtk;
using namespace sigc;