diff --git a/include/wx/msw/regconf.h b/include/wx/msw/regconf.h
index 960d098f82..3a1bca89a1 100644
--- a/include/wx/msw/regconf.h
+++ b/include/wx/msw/regconf.h
@@ -25,7 +25,7 @@
 // wxRegConfig
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxRegConfig : public wxConfigBase
+class WXDLLIMPEXP_BASE wxRegConfig : public wxConfigBase
 {
 public:
   // ctor & dtor