diff --git a/pages/develop/legacy/tutorial/csharp_tutorial.txt b/pages/develop/legacy/tutorial/csharp_tutorial.txt
index 16fab26b9..9bc5c36b0 100644
--- a/pages/develop/legacy/tutorial/csharp_tutorial.txt
+++ b/pages/develop/legacy/tutorial/csharp_tutorial.txt
@@ -180,7 +180,8 @@ And create a new Window with auto-hide (the window is automatically hidden when
         efl.ui.IWin win = new efl.ui.Win(null);
         win.SetText("Hello, World!");
         win.SetAutohide(true);
-        win.SetSize(240, 60);
+        //win.SetSize(240, 60); 
+        win.SetSize(new eina.Size2D(240, 60));
         win.SetVisible(true);
 </code>
 
@@ -188,7 +189,8 @@ Create a new Button (passing the newly created window as the parent), set new la
 <code csharp>
         efl.ui.IButton btn = new efl.ui.Button(win);
         btn.SetText("Good-Bye, World!");
-        btn.SetSize(120, 30);
+        //btn.SetSize(120, 30);
+        btn.SetSize(new eina.Size2D(120, 30));
         eina.Position2D pos;
         pos.X = 60;
         pos.Y = 15;