diff --git a/gtk2_ardour/keyeditor.cc b/gtk2_ardour/keyeditor.cc
index dbe374fcbc..72207ea27f 100644
--- a/gtk2_ardour/keyeditor.cc
+++ b/gtk2_ardour/keyeditor.cc
@@ -32,7 +32,6 @@
 #include "gtkmm2ext/utils.h"
 
 #include "pbd/strsplit.h"
-#include "pbd/replace_all.h"
 
 #include "ardour/profile.h"