diff --git a/include/wx/generic/propdlg.h b/include/wx/generic/propdlg.h
index f2fcbaf9c9..282a25072b 100644
--- a/include/wx/generic/propdlg.h
+++ b/include/wx/generic/propdlg.h
@@ -16,7 +16,7 @@
 
 #if wxUSE_BOOKCTRL
 
-class WXDLLEXPORT wxBookCtrlBase;
+#include "wx/bookctrl.h"
 
 //-----------------------------------------------------------------------------
 // wxPropertySheetDialog