--- a/ui/ui/toolkit.h	Fri Oct 06 19:38:10 2023 +0200
+++ b/ui/ui/toolkit.h	Tue Oct 10 10:58:14 2023 +0200
@@ -73,11 +73,13 @@
 
 #ifdef __cplusplus
 
+#ifndef UI_WINUI_PCH
 #include <Windows.h>
 #undef GetCurrentTime
 #include <winrt/Windows.Foundation.Collections.h>
 #include <winrt/Windows.UI.Xaml.Interop.h>
 #include <winrt/Microsoft.UI.Xaml.Controls.h>
+#endif
 
 class UiWindow {
 public: