diff --git a/gtk2_ardour/export_video_infobox.cc b/gtk2_ardour/export_video_infobox.cc
index fbe28bd821..a3e356decc 100644
--- a/gtk2_ardour/export_video_infobox.cc
+++ b/gtk2_ardour/export_video_infobox.cc
@@ -18,6 +18,9 @@
 
 */
 #include "ardour/session.h"
+#ifdef interface
+#undef interface
+#endif
 #include "export_video_infobox.h"
 #include "i18n.h"
 
diff --git a/gtk2_ardour/video_server_dialog.cc b/gtk2_ardour/video_server_dialog.cc
index 8838409ccf..a8383f4d23 100644
--- a/gtk2_ardour/video_server_dialog.cc
+++ b/gtk2_ardour/video_server_dialog.cc
@@ -29,6 +29,10 @@
 #include "ardour/template_utils.h"
 #include "ardour/session.h"
 
+#ifdef interface
+#undef interface
+#endif
+
 #include "video_server_dialog.h"
 #include "utils_videotl.h"
 #include "i18n.h"
diff --git a/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h b/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h
index 64176232f0..a758ad78f4 100644
--- a/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h
+++ b/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h
@@ -27,6 +27,10 @@
 #include <setjmp.h>
 #include <pthread.h>
 
+#ifdef interface
+#undef interface
+#endif
+
 #include <glibmm/thread.h>
 
 #include <gtkmm/widget.h>