1 files changed, 3 insertions, 0 deletions
diff --git a/gtk2_ardour/mixer_ui.h b/gtk2_ardour/mixer_ui.h
index e03d2efebd..87bf57a6df 100644
--- a/gtk2_ardour/mixer_ui.h
+++ b/gtk2_ardour/mixer_ui.h
@@ -50,6 +50,7 @@ namespace ARDOUR {
 class MixerStrip;
 class PluginSelector;
 class MixerGroupTabs;
+class MonitorSection;
 
 class Mixer_UI : public Gtk::Window, public PBD::ScopedConnectionList, public ARDOUR::SessionHandlePtr
 {
@@ -194,6 +195,8 @@ class Mixer_UI : public Gtk::Window, public PBD::ScopedConnectionList, public AR
 	void track_column_click (gint);
 	void build_track_menu ();
 
+        MonitorSection* monitor_section;
+
 	PluginSelector    *_plugin_selector;
 
 	void strip_property_changed (const PBD::PropertyChange&, MixerStrip *);