diff --git a/gtk2_ardour/ardour_ui.cc b/gtk2_ardour/ardour_ui.cc
index bd88c928c6..b30d6a7b94 100644
--- a/gtk2_ardour/ardour_ui.cc
+++ b/gtk2_ardour/ardour_ui.cc
@@ -5789,7 +5789,7 @@ ARDOUR_UI::reset_focus (Gtk::Widget* w)
 
 	Gtk::Widget* top = w->get_toplevel();
 
-	if (!top || !top->is_toplevel()) {
+	if (!top || !top->get_is_toplevel()) {
 		return;
 	}
 
@@ -5797,7 +5797,7 @@ ARDOUR_UI::reset_focus (Gtk::Widget* w)
 
 	while (w) {
 
-		if (w->is_toplevel()) {
+		if (w->get_is_toplevel()) {
 			/* Setting the focus widget to a Gtk::Window causes all
 			 * subsequent calls to ::has_focus() on the nominal
 			 * focus widget in that window to return
diff --git a/gtk2_ardour/monitor_section.cc b/gtk2_ardour/monitor_section.cc
index 1390d26e78..67ac7fbf29 100644
--- a/gtk2_ardour/monitor_section.cc
+++ b/gtk2_ardour/monitor_section.cc
@@ -536,7 +536,7 @@ MonitorSection::leave_handler (GdkEventCrossing* ev)
 
 	Widget* top = get_toplevel();
 
-	if (top->is_toplevel() && top != &_tearoff->tearoff_window()) {
+	if (top->get_is_toplevel() && top != &_tearoff->tearoff_window()) {
 		Window* win = dynamic_cast<Window*> (top);
 		gtk_window_set_focus (win->gobj(), 0);
 	}
diff --git a/gtk2_ardour/processor_box.cc b/gtk2_ardour/processor_box.cc
index 9fe972358e..9493319522 100644
--- a/gtk2_ardour/processor_box.cc
+++ b/gtk2_ardour/processor_box.cc
@@ -2253,7 +2253,7 @@ ProcessorBox::leave_notify (GdkEventCrossing* ev)
 
 	Widget* top = get_toplevel();
 
-	if (top->is_toplevel()) {
+	if (top->get_is_toplevel()) {
 		Window* win = dynamic_cast<Window*> (top);
 		gtk_window_set_focus (win->gobj(), 0);
 	}