diff --git a/viz/curses/minidigits.c b/viz/curses/minidigits.c
index b86b9b9..0d4ff1a 100644
--- a/viz/curses/minidigits.c
+++ b/viz/curses/minidigits.c
@@ -25,8 +25,8 @@ if ('_'==ch) {
 	}
 else	{
 	wstandout(win);
-	mvwaddch(win, li, col,   ' ');
-	mvwaddch(win, li, col+1, ' ');
+	mvwaddch(win, li, col,   '+');
+	mvwaddch(win, li, col+1, '+');
 	wstandend(win);
 	}
 }