diff --git a/include/wx/app.h b/include/wx/app.h
index 464a789e57..c6b1fe58f6 100644
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -383,7 +383,8 @@ public:
     #define IMPLEMENT_WXWIN_MAIN \
         extern "C" int WXAPIENTRY WinMain(WXHINSTANCE hInstance,\
                                           WXHINSTANCE hPrevInstance,\
-                                          char *m_lpCmdLine, int nCmdShow)\
+                                          char WXFAR *m_lpCmdLine,\
+                                          int nCmdShow)\
         {\
             return wxEntry(hInstance, hPrevInstance, m_lpCmdLine, nCmdShow);\
         }