diff --git a/src/proto/os_mswin.pro b/src/proto/os_mswin.pro
index 9f534e0..17a9ba2 100644
--- a/src/proto/os_mswin.pro
+++ b/src/proto/os_mswin.pro
@@ -50,7 +50,7 @@
 void serverProcessPendingMessages(void);
 char *charset_id2name(int id);
 char *quality_id2name(DWORD id);
+void gui_mch_expand_font(optexpand_T *args, void *param, int (*add_match)(char_u *val));
 int get_logfont(LOGFONTW *lf, char_u *name, HDC printer_dc, int verbose);
-void gui_mch_expand_font(optexpand_T *args, void *param, int (*cb)(char_u *val));
 void channel_init_winsock(void);
 /* vim: set ft=c : */