1 files changed, 3 insertions, 1 deletions
diff --git a/libs/surfaces/control_protocol/control_protocol/basic_ui.h b/libs/surfaces/control_protocol/control_protocol/basic_ui.h
index 96a1227463..180688e616 100644
--- a/libs/surfaces/control_protocol/control_protocol/basic_ui.h
+++ b/libs/surfaces/control_protocol/control_protocol/basic_ui.h
@@ -32,12 +32,14 @@
 
 #include "timecode/time.h"
 
+#include "control_protocol/visibility.h"
+
 namespace ARDOUR {
 	class Session;
 	class SessionEvent;
 }
 
-class BasicUI {
+class LIBCONTROLCP_API BasicUI {
   public:
 	BasicUI (ARDOUR::Session&);
 	virtual ~BasicUI ();