1 files changed, 5 insertions, 2 deletions
diff --git a/libs/ardour/ardour/element_import_handler.h b/libs/ardour/ardour/element_import_handler.h
index be2e3fafb0..167bc1c7b1 100644
--- a/libs/ardour/ardour/element_import_handler.h
+++ b/libs/ardour/ardour/element_import_handler.h
@@ -27,7 +27,10 @@
 
 #include <boost/shared_ptr.hpp>
 
-class XMLTree;
+#include "ardour/libardour_visibility.h"
+#include "pbd/libpbd_visibility.h"
+
+class LIBPBD_API XMLTree;
 
 namespace ARDOUR {
 
@@ -35,7 +38,7 @@ class Session;
 class ElementImporter;
 
 /// Virtual interface class for element import handlers
-class ElementImportHandler
+class LIBARDOUR_API ElementImportHandler
 {
   public:
 	typedef boost::shared_ptr<ElementImporter> ElementPtr;