diff --git a/src/proto/os_mswin.pro b/src/proto/os_mswin.pro
index 3e8d487..2548d00 100644
--- a/src/proto/os_mswin.pro
+++ b/src/proto/os_mswin.pro
@@ -49,6 +49,6 @@
 void serverProcessPendingMessages(void);
 char *charset_id2name(int id);
 char *quality_id2name(DWORD id);
-int get_logfont(LOGFONT *lf, char_u *name, HDC printer_dc, int verbose);
+int get_logfont(LOGFONTW *lf, char_u *name, HDC printer_dc, int verbose);
 void channel_init_winsock(void);
 /* vim: set ft=c : */