diff --git a/libs/gtkmm2ext/barcontroller.cc b/libs/gtkmm2ext/barcontroller.cc
index d213f22d26..9e8d101cb8 100644
--- a/libs/gtkmm2ext/barcontroller.cc
+++ b/libs/gtkmm2ext/barcontroller.cc
@@ -23,7 +23,6 @@
 #include <algorithm>
 
 #include <pbd/controllable.h>
-#include <pbd/locale_guard.h>
 
 #include "gtkmm2ext/gtk_ui.h"
 #include "gtkmm2ext/utils.h"