diff --git a/libs/ardour/ardour/audioanalyser.h b/libs/ardour/ardour/audioanalyser.h
index d5c14bc953..03eb7d94fa 100644
--- a/libs/ardour/ardour/audioanalyser.h
+++ b/libs/ardour/ardour/audioanalyser.h
@@ -23,7 +23,7 @@
 #include <vector>
 #include <string>
 #include <boost/utility.hpp>
-#include "vamp-sdk/Plugin.h"
+#include <vamp-hostsdk/Plugin.h>
 #include "ardour/libardour_visibility.h"
 #include "ardour/types.h"
 
diff --git a/libs/ardour/ardour/lua_api.h b/libs/ardour/ardour/lua_api.h
index 85fe92f28c..7578fab03e 100644
--- a/libs/ardour/ardour/lua_api.h
+++ b/libs/ardour/ardour/lua_api.h
@@ -22,7 +22,7 @@
 #include <string>
 #include <lo/lo.h>
 #include <boost/shared_ptr.hpp>
-#include <vamp-sdk/Plugin.h>
+#include <vamp-hostsdk/Plugin.h>
 
 #include "ardour/libardour_visibility.h"
 
diff --git a/libs/audiographer/audiographer/general/loudness_reader.h b/libs/audiographer/audiographer/general/loudness_reader.h
index 7431f5ef08..c86fd521da 100644
--- a/libs/audiographer/audiographer/general/loudness_reader.h
+++ b/libs/audiographer/audiographer/general/loudness_reader.h
@@ -20,7 +20,6 @@
 #define AUDIOGRAPHER_LOUDNESS_READER_H
 
 #include <vamp-hostsdk/PluginLoader.h>
-#include <vamp-sdk/Plugin.h>
 
 #include "audiographer/visibility.h"
 #include "audiographer/sink.h"