diff --git a/include/wx/html/helpdata.h b/include/wx/html/helpdata.h
index b58ff12022..0780cac6b0 100644
--- a/include/wx/html/helpdata.h
+++ b/include/wx/html/helpdata.h
@@ -32,7 +32,7 @@ class WXDLLEXPORT wxHtmlHelpData;
 // helper classes & structs
 //--------------------------------------------------------------------------------
 
-class WXDLLEXPORT wxHtmlBookRecord : public wxObject
+class WXDLLEXPORT wxHtmlBookRecord
 {
 public:
     wxHtmlBookRecord(const wxString& bookfile, const wxString& basepath,