diff --git a/gtk2_ardour/ardour_ui3.cc b/gtk2_ardour/ardour_ui3.cc
index 7d592fd9fe..4cd2ef1585 100644
--- a/gtk2_ardour/ardour_ui3.cc
+++ b/gtk2_ardour/ardour_ui3.cc
@@ -80,7 +80,7 @@ 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;
 	}
 
@@ -88,7 +88,7 @@ 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 3c7a5f126e..c889eb4860 100644
--- a/gtk2_ardour/monitor_section.cc
+++ b/gtk2_ardour/monitor_section.cc
@@ -560,7 +560,7 @@ 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 413390b1bf..799bf4e361 100644
--- a/gtk2_ardour/processor_box.cc
+++ b/gtk2_ardour/processor_box.cc
@@ -2422,7 +2422,7 @@ 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);
 	}