fixing 10.5 only compiles

[wxWidgets.git] / include / wx / generic / propdlg.h

diff --git a/include/wx/generic/propdlg.h b/include/wx/generic/propdlg.h
index 282a25072bfa2b7c218eb05c8667557cd793f068..b6c60227d4788e718e1e7bf91af8c58ab5efc892 100644 (file)
--- a/include/wx/generic/propdlg.h
+++ b/include/wx/generic/propdlg.h
@@ -16,7 +16,9 @@
 
 #if wxUSE_BOOKCTRL
 
-#include "wx/bookctrl.h"
+#include "wx/dialog.h"
+
+class WXDLLIMPEXP_FWD_CORE wxBookCtrlBase;
 
 //-----------------------------------------------------------------------------
 // wxPropertySheetDialog