diff --git a/gtk2_ardour/control_slave_ui.cc b/gtk2_ardour/control_slave_ui.cc
index 235a568a54..96ff49c372 100644
--- a/gtk2_ardour/control_slave_ui.cc
+++ b/gtk2_ardour/control_slave_ui.cc
@@ -47,7 +47,7 @@ ControlSlaveUI::ControlSlaveUI (Session* s)
 {
 	set_no_show_all (true);
 
-	Gtkmm2ext::UI::instance()->set_tip (*this, _("VCAs"));
+	Gtkmm2ext::UI::instance()->set_tip (*this, _("VCA Assign"));
 
 	initial_button.set_no_show_all (true);
 	initial_button.set_name (X_("vca assign"));