diff --git a/sys/kern/tty_conf.c b/sys/kern/tty_conf.c
index a8a65ff047cd..ba3d785e5b9f 100644
--- a/sys/kern/tty_conf.c
+++ b/sys/kern/tty_conf.c
@@ -52,7 +52,6 @@
 
 static l_open_t		l_noopen;
 static l_close_t	l_noclose;
-static l_ioctl_t	l_nullioctl;
 static l_rint_t		l_norint;
 static l_start_t	l_nostart;
 
@@ -198,7 +197,7 @@ l_nostart(tp)
  * Do nothing specific version of line
  * discipline specific ioctl command.
  */
-static int
+int
 l_nullioctl(tp, cmd, data, flags, p)
 	struct tty *tp;
 	u_long cmd;
diff --git a/sys/sys/conf.h b/sys/sys/conf.h
index f2f9a17db257..dd68562a1441 100644
--- a/sys/sys/conf.h
+++ b/sys/sys/conf.h
@@ -270,6 +270,7 @@ d_dump_t	nodump;
 d_open_t	nullopen;
 d_close_t	nullclose;
 
+l_ioctl_t	l_nullioctl;
 l_read_t	l_noread;
 l_write_t	l_nowrite;
 
diff --git a/sys/sys/linedisc.h b/sys/sys/linedisc.h
index f2f9a17db257..dd68562a1441 100644
--- a/sys/sys/linedisc.h
+++ b/sys/sys/linedisc.h
@@ -270,6 +270,7 @@ d_dump_t	nodump;
 d_open_t	nullopen;
 d_close_t	nullclose;
 
+l_ioctl_t	l_nullioctl;
 l_read_t	l_noread;
 l_write_t	l_nowrite;