diff --git a/sample/test/TestRange.cs b/sample/test/TestRange.cs

index 82fb811..29a8ee7 100644

--- a/sample/test/TestRange.cs

+++ b/sample/test/TestRange.cs

@@ -32,14 +32,14 @@ namespace WidgetViewer {

 			HScale hscale = new HScale (adjustment);

 			hscale.SetSizeRequest (150, -1);

-			((Range) hscale).UpdatePolicy = UpdateType.Delayed;

+			((Gtk.Range) hscale).UpdatePolicy = UpdateType.Delayed;

 			hscale.Digits = 1;

 			hscale.DrawValue = true;

 			box2.PackStart (hscale, true, true, 0);

 			HScrollbar hscrollbar = new HScrollbar (adjustment);

-			((Range) hscrollbar).UpdatePolicy = UpdateType.Continuous;

+			((Gtk.Range) hscrollbar).UpdatePolicy = UpdateType.Continuous;

 			box2.PackStart (hscrollbar, true, true, 0);

 			hscale = new HScale (adjustment);

@@ -59,7 +59,7 @@ namespace WidgetViewer {

 			vscale.SetSizeRequest (-1, 200);

 			vscale.Digits = 2;

 			vscale.DrawValue = true;

-			((Range) vscale).Inverted = true;

+			((Gtk.Range) vscale).Inverted = true;

 			hbox.PackStart (vscale, true, true, 0);

 			vscale = new VScale (adjustment);