diff --git a/compat/mingw.h b/compat/mingw.h
index b3d299f..a105dc9 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -220,7 +220,8 @@
 int mingw_utime(const char *file_name, const struct utimbuf *times);
 #define utime mingw_utime
 
-pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
+pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+		     int fhin, int fhout, int fherr);
 void mingw_execvp(const char *cmd, char *const *argv);
 #define execvp mingw_execvp