diff --git a/wxPython/src/_dataobj.i b/wxPython/src/_dataobj.i
index c93fe8b8d4..a0b8fbbdd6 100644
--- a/wxPython/src/_dataobj.i
+++ b/wxPython/src/_dataobj.i
@@ -360,9 +360,7 @@ public:
     wxFileDataObject();
 
     const wxArrayString& GetFilenames();
-#ifdef __WXMSW__
     void AddFile(const wxString &filename);
-#endif
 };