diff --git a/include/wx/dynlib.h b/include/wx/dynlib.h
index e7b65cfd05..90fb2f1dc7 100644
--- a/include/wx/dynlib.h
+++ b/include/wx/dynlib.h
@@ -222,7 +222,7 @@ protected:
 // Global variables
 // ----------------------------------------------------------------------------
 
-extern wxLibraries wxTheLibraries;
+extern WXDLLEXPORT_DATA(wxLibraries) wxTheLibraries;
 
 // ----------------------------------------------------------------------------
 // Interesting defines