1 files changed, 1 insertions, 1 deletions
diff --git a/libs/ardour/ardour/automation_watch.h b/libs/ardour/ardour/automation_watch.h
index f3e343468d..db6474c062 100644
--- a/libs/ardour/ardour/automation_watch.h
+++ b/libs/ardour/ardour/automation_watch.h
@@ -30,7 +30,7 @@ namespace ARDOUR {
 
 class AutomationControl;
 
-class AutomationWatch : public sigc::trackable, public ARDOUR::SessionHandlePtr, public PBD::ScopedConnectionList {
+class LIBARDOUR_API AutomationWatch : public sigc::trackable, public ARDOUR::SessionHandlePtr, public PBD::ScopedConnectionList {
   public:
     static AutomationWatch& instance();