diff --git a/tty.c b/tty.c
index 6b22c851..1c6f7d5b 100644
--- a/tty.c
+++ b/tty.c
@@ -55,9 +55,9 @@ void	tty_cell(struct tty *,
 	    const struct grid_cell *, const struct grid_utf8 *);
 
 #define tty_use_acs(tty) \
-	(tty_term_has(tty->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
+	(tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
 #define tty_use_rect(tty) \
-	(tty->xterm_version > 270)
+	((tty)->xterm_version > 270)
 
 void
 tty_init(struct tty *tty, int fd, char *term)