diff --git a/gtk2_ardour/editor_canvas_events.cc b/gtk2_ardour/editor_canvas_events.cc
index 9c0fe30be4..95620030a9 100644
--- a/gtk2_ardour/editor_canvas_events.cc
+++ b/gtk2_ardour/editor_canvas_events.cc
@@ -321,7 +321,7 @@ Editor::canvas_stream_view_event (GdkEvent *event, ArdourCanvas::Item* item, Rou
 		break;
 
 	case GDK_MOTION_NOTIFY:
-		ret = motion_handler (item, event, StreamItem);
+		ret = motion_handler (item, event);
 		break;
 
 	case GDK_ENTER_NOTIFY: