diff --git a/include/wx/display.h b/include/wx/display.h
index a9eeb86607..11c4bd0117 100644
--- a/include/wx/display.h
+++ b/include/wx/display.h
@@ -21,6 +21,9 @@
 #include "wx/dynarray.h"
 
 class WXDLLEXPORT wxWindow;
+class WXDLLEXPORT wxPoint;
+class WXDLLEXPORT wxRect;
+class WXDLLEXPORT wxString; 
 
 // ----------------------------------------------------------------------------
 // wxVideoMode: contains video mode parameters for a display