diff --git a/css-text-3/Overview.bs b/css-text-3/Overview.bs
index b3bba5e697f..d04112ab1cc 100644
--- a/css-text-3/Overview.bs
+++ b/css-text-3/Overview.bs
@@ -596,7 +596,7 @@ Characters and Letters
(that are not segment breaks)
are rendered as a zero-width space (U+200B).
Control characters (Unicode category Cc)
- other than tab (U+0009), line feed (U+000A), form feed (U+000C), and carriage return (U+000D)
+ other than tab (U+0009), line feed (U+000A), and form feed (U+000C),
must be rendered as a visible glyph
and otherwise treated as any other character
of the Other Symbols (So) general category and Common script.