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-rw-r--r--gtk2_ardour/global_port_matrix.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/gtk2_ardour/global_port_matrix.cc b/gtk2_ardour/global_port_matrix.cc
index 218cfe7a1c..706b4b6727 100644
--- a/gtk2_ardour/global_port_matrix.cc
+++ b/gtk2_ardour/global_port_matrix.cc
@@ -32,6 +32,7 @@
using namespace std;
using namespace ARDOUR;
+using namespace ARDOUR_UI_UTILS;
GlobalPortMatrix::GlobalPortMatrix (Gtk::Window* p, Session* s, DataType t)
: PortMatrix (p, s, t)