diff --git a/include/wx/prntbase.h b/include/wx/prntbase.h
index 3a2fee6aba..23b60fca7d 100644
--- a/include/wx/prntbase.h
+++ b/include/wx/prntbase.h
@@ -95,6 +95,7 @@ public:
 
     static void SetPrintFactory( wxPrintFactory *factory );
     static wxPrintFactory *GetFactory();
+private:
     static wxPrintFactory *m_factory;
 };