diff --git a/lib/libutil/libutil.h b/lib/libutil/libutil.h
index 62b308bdcb0..8a962842aa7 100644
--- a/lib/libutil/libutil.h
+++ b/lib/libutil/libutil.h
@@ -18,7 +18,7 @@
  * 5. Modifications may be freely made to this file providing the above
  *    conditions are met.
  *
- * $Id: libutil.h,v 1.11 1997/08/27 20:06:19 brian Exp $
+ * $Id: libutil.h,v 1.12 1997/08/31 20:09:38 brian Exp $
  */
 
 #ifndef _LIBUTIL_H_
@@ -36,7 +36,7 @@ void	setproctitle __P((const char *_fmt, ...));
 void	login __P((struct utmp *_ut));
 int	login_tty __P((int _fd));
 int	logout __P((char *_line));
-void	logwtmp __P((char *_line, char *_name, char *_host));
+void	logwtmp __P((const char *_line, const char *_name, const char *_host));
 int	openpty __P((int *_amaster, int *_aslave, char *_name,
 		     struct termios *_termp, struct winsize *_winp));
 int	forkpty __P((int *_amaster, char *_name,
diff --git a/lib/libutil/logwtmp.c b/lib/libutil/logwtmp.c
index c0357b2ac85..de3c5d69d0c 100644
--- a/lib/libutil/logwtmp.c
+++ b/lib/libutil/logwtmp.c
@@ -36,7 +36,7 @@
 static char sccsid[] = "@(#)logwtmp.c	8.1 (Berkeley) 6/4/93";
 #else
 static const char rcsid[] =
-	"$Id$";
+	"$Id: logwtmp.c,v 1.4 1997/08/13 20:42:18 steve Exp $";
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -55,7 +55,9 @@ static const char rcsid[] =
 
 void
 logwtmp(line, name, host)
-	char *line, *name, *host;
+	const char *line;
+	const char *name;
+	const char *host;
 {
 	struct utmp ut;
 	struct stat buf;