1 files changed, 1 insertions, 1 deletions
diff --git a/tty-acs.c b/tty-acs.c
index 13dbbc72..5d03c3eb 100644
--- a/tty-acs.c
+++ b/tty-acs.c
@@ -81,7 +81,7 @@ tty_acs_get(struct tty *tty, u_char ch)
 	struct tty_acs_entry *entry;
 
 	/* If not a UTF-8 terminal, use the ACS set. */
-	if (!(tty->flags & TTY_UTF8)) {
+	if (tty != NULL && !(tty->flags & TTY_UTF8)) {
 		if (tty->term->acs[ch][0] == '\0')
 			return (NULL);
 		return (&tty->term->acs[ch][0]);