diff --git a/gtk2_ardour/beatbox_gui.cc b/gtk2_ardour/beatbox_gui.cc
index fec33a1aa0..35d59691c2 100644
--- a/gtk2_ardour/beatbox_gui.cc
+++ b/gtk2_ardour/beatbox_gui.cc
@@ -20,8 +20,6 @@
 #include <cstdlib>
 #include <ctime>
 
-#include <boost/integer/common_factor.hpp>
-
 #include "pbd/compose.h"
 #include "pbd/i18n.h"