diff --git a/libs/ardour/presentation_info.cc b/libs/ardour/presentation_info.cc
index b335f54904..8139689649 100644
--- a/libs/ardour/presentation_info.cc
+++ b/libs/ardour/presentation_info.cc
@@ -164,6 +164,7 @@ PresentationInfo::set_color (PresentationInfo::color_t c)
 	if (c != _color) {
 		_color = c;
 		send_change (PropertyChange (Properties::color));
+		Change (); /* EMIT SIGNAL */
 	}
 }