diff --git a/css-syntax-3/Overview.bs b/css-syntax-3/Overview.bs
index eea59750173..ccc64b2a810 100644
--- a/css-syntax-3/Overview.bs
+++ b/css-syntax-3/Overview.bs
@@ -487,7 +487,7 @@ Tokenization</h2>
 	<dfn>&lt;number-token></dfn>,
 	<dfn>&lt;percentage-token></dfn>,
 	<dfn>&lt;dimension-token></dfn>,
-	<dfn>&lt;unicode-range-token></dfn>,
+	<dfn export>&lt;unicode-range-token></dfn>,
 	<dfn>&lt;whitespace-token></dfn>,
 	<dfn>&lt;CDO-token></dfn>,
 	<dfn>&lt;CDC-token></dfn>,