diff --git a/interface/wx/event.h b/interface/wx/event.h
index 9b4d0a408a..9ebf57c12d 100644
--- a/interface/wx/event.h
+++ b/interface/wx/event.h
@@ -1787,6 +1787,10 @@ public:
     not sent when the window is restored to its original size after it had been
     maximized, only a normal wxSizeEvent is generated in this case.
 
+    Currently this event is only generated in wxMSW, wxOSX/Cocoa and wxOS2
+    ports so portable programs should only rely on receiving @c wxEVT_SIZE and
+    not necessarily this event when the window is maximized.
+
     @beginEventTable{wxMaximizeEvent}
     @event{EVT_MAXIMIZE(func)}
         Process a @c wxEVT_MAXIMIZE event.