diff --git a/index.html b/index.html
index 5ab53f73..25125ee1 100644
--- a/index.html
+++ b/index.html
@@ -769,7 +769,7 @@ <h3>
       </li>
       <li>If |document| is not a [=Document/fully active descendant of a
       top-level traversable with user attention=], [=exception/throw=]
-      {{"NotAllowedError"}} {{DOMException}}.
+      {{"SecurityError"}} {{DOMException}}.
       </li>
       <li>If |window| does not have [=transient activation=],
       [=exception/throw=] {{"NotAllowedError"}} {{DOMException}}.