diff --git a/libs/ardour/ardour/export_channel_configuration.h b/libs/ardour/ardour/export_channel_configuration.h
index 64b906a680..80d89c439d 100644
--- a/libs/ardour/ardour/export_channel_configuration.h
+++ b/libs/ardour/ardour/export_channel_configuration.h
@@ -26,8 +26,6 @@
 #include <list>
 #include <string>
 
-#include <boost/enable_shared_from_this.hpp>
-
 #include "ardour/export_channel.h"
 #include "ardour/export_pointers.h"
 
diff --git a/libs/ardour/ardour/lua_api.h b/libs/ardour/ardour/lua_api.h
index 835937e7df..527879bedb 100644
--- a/libs/ardour/ardour/lua_api.h
+++ b/libs/ardour/ardour/lua_api.h
@@ -23,7 +23,6 @@
 #include <string>
 
 #include <lo/lo.h>
-#include <boost/enable_shared_from_this.hpp>
 #include <rubberband/RubberBandStretcher.h>
 #include <vamp-hostsdk/Plugin.h>
 
diff --git a/libs/ardour/ardour/lv2_plugin.h b/libs/ardour/ardour/lv2_plugin.h
index 0c006787dd..8f06b62b4c 100644
--- a/libs/ardour/ardour/lv2_plugin.h
+++ b/libs/ardour/ardour/lv2_plugin.h
@@ -28,7 +28,6 @@
 #include <set>
 #include <string>
 #include <vector>
-#include <boost/enable_shared_from_this.hpp>
 
 #include "temporal/tempo.h"