diff --git a/include/wx/msw/helpchm.h b/include/wx/msw/helpchm.h
index 86cb059e4c..13d062de38 100644
--- a/include/wx/msw/helpchm.h
+++ b/include/wx/msw/helpchm.h
@@ -82,7 +82,7 @@ protected:
 
     wxString m_helpFile;
 
-    DECLARE_CLASS(wxCHMHelpController)
+    DECLARE_DYNAMIC_CLASS(wxCHMHelpController)
 };
 
 #endif // wxUSE_MS_HTML_HELP
diff --git a/include/wx/richtext/richtextctrl.h b/include/wx/richtext/richtextctrl.h
index be03f9c48d..54e8a6c830 100644
--- a/include/wx/richtext/richtextctrl.h
+++ b/include/wx/richtext/richtextctrl.h
@@ -212,7 +212,7 @@ class WXDLLIMPEXP_RICHTEXT wxRichTextCtrl : public wxControl,
                                             public wxTextCtrlIface,
                                             public wxScrollHelper
 {
-    DECLARE_CLASS( wxRichTextCtrl )
+    DECLARE_DYNAMIC_CLASS( wxRichTextCtrl )
     DECLARE_EVENT_TABLE()
 
 public: