diff --git a/src/Avalonia.Controls/Platform/IWindowImpl.cs b/src/Avalonia.Controls/Platform/IWindowImpl.cs
index 383515b9f9..91386c93fe 100644
--- a/src/Avalonia.Controls/Platform/IWindowImpl.cs
+++ b/src/Avalonia.Controls/Platform/IWindowImpl.cs
@@ -152,6 +152,6 @@ namespace Avalonia.Platform
         /// </summary>
         /// <param name="windows">A span of windows to get their z-order</param>
         /// <param name="zOrder">Span to be filled with associated window z-order</param>
-        internal void GetWindowsZOrder(Span<Window> windows, Span<long> zOrder);
+        void GetWindowsZOrder(Span<Window> windows, Span<long> zOrder);
     }
 }