diff --git a/UICatalog/UICatalog.cs b/UICatalog/UICatalog.cs
index 3a5ef083d..c668a8d02 100644
--- a/UICatalog/UICatalog.cs
+++ b/UICatalog/UICatalog.cs
@@ -540,7 +540,7 @@ namespace UICatalog {
 				miForce16Colors.CheckType |= MenuItemCheckStyle.Checked;
 				miForce16Colors.Action += () => {
 					miForce16Colors.Checked = Application.Driver.Force16Colors = (bool)!miForce16Colors.Checked!;
-
+					Application.Refresh ();
 				};
 				menuItems.Add (miForce16Colors);