diff --git a/interface/wx/propgrid/manager.h b/interface/wx/propgrid/manager.h
index b1daefdcd5..e21d8c9616 100644
--- a/interface/wx/propgrid/manager.h
+++ b/interface/wx/propgrid/manager.h
@@ -36,8 +36,9 @@
     @library{wxpropgrid}
     @category{propgrid}
 */
-class WXDLLIMPEXP_PROPGRID wxPropertyGridPage : public wxEvtHandler,
-                                                public wxPropertyGridInterface
+class wxPropertyGridPage : public wxEvtHandler,
+                           public wxPropertyGridInterface,
+                           public wxPropertyGridPageState
 {
     friend class wxPropertyGridManager;