diff --git a/usr.sbin/rpc.yppasswdd/yppasswdd_extern.h b/usr.sbin/rpc.yppasswdd/yppasswdd_extern.h
index 98cab6e9e511..db15be228a6d 100644
--- a/usr.sbin/rpc.yppasswdd/yppasswdd_extern.h
+++ b/usr.sbin/rpc.yppasswdd/yppasswdd_extern.h
@@ -50,11 +50,10 @@ extern char	*yp_dir;
 extern char	*progname;
 extern void	do_master(void);
 extern void	yppasswdprog_1(struct svc_req *, register SVCXPRT *);
-extern void     master_yppasswdprog_1 __P((struct svc_req *,
-						register SVCXPRT *));
+extern void     master_yppasswdprog_1(struct svc_req *, register SVCXPRT *);
 extern void	reaper(int);
 extern void	install_reaper(int);
-extern char	*ok_shell __P ((char *));
+extern char	*ok_shell(char *);
 extern char	*passfile;
 extern char	*passfile_default;
 extern char	*yppasswd_domain;