diff --git a/include/wx/mac/popupwin.h b/include/wx/mac/popupwin.h
new file mode 100755
index 0000000000..e230fccf5f
--- /dev/null
+++ b/include/wx/mac/popupwin.h
@@ -0,0 +1,5 @@
+#ifdef __WXMAC_CLASSIC__
+#error "wxPopupWindow is not supported under this platform."
+#else
+#include "wx/mac/carbon/popupwin.h"
+#endif