diff --git a/gtk2_ardour/automation_line.cc b/gtk2_ardour/automation_line.cc
index 263fe29..fb656d4 100644
--- a/gtk2_ardour/automation_line.cc
+++ b/gtk2_ardour/automation_line.cc
@@ -580,6 +580,7 @@ AutomationLine::end_drag ()
 		new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state())
 		);
 
+	reset ();
 	trackview.editor().session()->set_dirty ();
 }