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-rw-r--r--gtk2_ardour/engine_dialog.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index b50a1ffd60..27cf9b7719 100644
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -58,6 +58,7 @@ using namespace Gtk;
using namespace Gtkmm2ext;
using namespace PBD;
using namespace Glib;
+using namespace ARDOUR_UI_UTILS;
static const unsigned int midi_tab = 2;
static const unsigned int latency_tab = 1; /* zero-based, page zero is the main setup page */