diff --git a/gtk2_ardour/au_pluginui.mm b/gtk2_ardour/au_pluginui.mm
index d09a553c01..c6eeb03563 100644
--- a/gtk2_ardour/au_pluginui.mm
+++ b/gtk2_ardour/au_pluginui.mm
@@ -1,3 +1,6 @@
+#undef  Marker
+#define Marker FuckYouAppleAndYourLackOfNameSpaces
+
 #include <pbd/error.h>
 #include <ardour/audio_unit.h>
 #include <ardour/insert.h>
@@ -18,6 +21,10 @@
 #import <AudioUnit/AUCocoaUIView.h>
 #import <CoreAudioKit/AUGenericView.h>
 
+#undef Marker
+
+#include "keyboard.h"
+
 #include "i18n.h"
 
 using namespace ARDOUR;