diff --git a/screen-write.c b/screen-write.c
index 3708c5cd..dbce6a9d 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -2774,7 +2774,7 @@ screen_write_sixelimage(struct screen_write_ctx *ctx, struct sixel_image *si,
 	}
 	screen_write_collect_flush(ctx, 0, __func__);
 
-	screen_write_initctx(ctx, &ttyctx, 0);
+	screen_write_initctx(ctx, &ttyctx, 0, 0);
 	ttyctx.image = image_store(s, si);
 
 	tty_write(tty_cmd_sixelimage, &ttyctx);
diff --git a/tmux.h b/tmux.h
index 49689a0f..75cc6658 100644
--- a/tmux.h
+++ b/tmux.h
@@ -2748,11 +2748,9 @@ void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
-
 #ifdef ENABLE_SIXEL
 void	tty_cmd_sixelimage(struct tty *, const struct tty_ctx *);
 #endif
-
 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
 void	tty_default_colours(struct grid_cell *, struct window_pane *);