diff --git a/src/proto/os_win32.pro b/src/proto/os_win32.pro
index 2daa146..185c8ad 100644
--- a/src/proto/os_win32.pro
+++ b/src/proto/os_win32.pro
@@ -45,4 +45,9 @@
 FILE *mch_fopen __ARGS((char *name, char *mode));
 int mch_copy_file_attribute __ARGS((char_u *from, char_u *to));
 int myresetstkoflw __ARGS((void));
+int get_cmd_argsW __ARGS((char ***argvp));
+void free_cmd_argsW __ARGS((void));
+void used_file_arg __ARGS((char *name, int literal, int full_path));
+void set_alist_count __ARGS((void));
+void fix_arg_enc __ARGS((void));
 /* vim: set ft=c : */