diff --git a/wxPython/include/wx/wxPython/wxPython_int.h b/wxPython/include/wx/wxPython/wxPython_int.h
index b4a7f84750..1487a714ab 100644
--- a/wxPython/include/wx/wxPython/wxPython_int.h
+++ b/wxPython/include/wx/wxPython/wxPython_int.h
@@ -103,7 +103,7 @@ PyObject* wxPyConstructObject(void* ptr,
                               int setThisOwn=0);
 bool wxPyConvertSwigPtr(PyObject* obj, void **ptr,
                         const wxChar* className);
-PyObject* wxPyMakeSwigPtr(void* ptr, const char* classname);
+PyObject* wxPyMakeSwigPtr(void* ptr, const wxChar* classname);
 
 
 PyObject* wx2PyString(const wxString& src);