diff --git a/src/Avalonia.FuncUI.ControlCatalog/Avalonia.FuncUI.ControlCatalog/Views/Tabs/AttachedEventDemo.fs b/src/Avalonia.FuncUI.ControlCatalog/Avalonia.FuncUI.ControlCatalog/Views/Tabs/AttachedEventDemo.fs
index 84019281..4d831e38 100644
--- a/src/Avalonia.FuncUI.ControlCatalog/Avalonia.FuncUI.ControlCatalog/Views/Tabs/AttachedEventDemo.fs
+++ b/src/Avalonia.FuncUI.ControlCatalog/Avalonia.FuncUI.ControlCatalog/Views/Tabs/AttachedEventDemo.fs
@@ -38,7 +38,7 @@ module AttachedEventDemo =
         | :? 't as t when t.Name = name -> Some t
         | _ -> None
 
-    let sprintRoutedEvent (s: #Interactive) (e: #RoutedEventArgs) =
+    let sprintRoutedEvent (s: Interactive) (e: #RoutedEventArgs) =
         let time = System.DateTime.Now.ToString ("HH:mm:ss.fff")
 
         let sender =