diff --git a/tutorial/Gui16/main.cpp b/tutorial/Gui16/main.cpp
index 400e3b779..cefa6174a 100644
--- a/tutorial/Gui16/main.cpp
+++ b/tutorial/Gui16/main.cpp
@@ -5,13 +5,13 @@ using namespace Upp;
 #define LAYOUTFILE <Gui16/dlg.lay>
 #include <CtrlCore/lay.h>
 
-struct MyApp : public WithDlgLayout<TopWindow> {
-	MyApp() {
+struct MyAppWindow : public WithDlgLayout<TopWindow> {
+	MyAppWindow() {
 		CtrlLayout(*this, "MyDialog");
 	}
 };
 
 GUI_APP_MAIN
 {
-	MyApp().Run();
+	MyAppWindow().Run();
 }