diff --git a/libs/ardour/gain_control.cc b/libs/ardour/gain_control.cc
index 214c2bd3d6..d655b700b4 100644
--- a/libs/ardour/gain_control.cc
+++ b/libs/ardour/gain_control.cc
@@ -148,7 +148,7 @@ GainControl::add_master (boost::shared_ptr<VCA> vca)
 		*/
 
 		vca->DropReferences.connect_same_thread (masters_connections, boost::bind (&GainControl::master_going_away, this, vca));
-
+		vca->control()->Changed.connect_same_thread (masters_connections, boost::bind (&PBD::Signal0<void>::operator(), &Changed));
 	}
 
 	if (old_master_val != new_master_val) {