diff --git a/document/js-api/index.bs b/document/js-api/index.bs
index 7ff0511550..a2896a7cb6 100644
--- a/document/js-api/index.bs
+++ b/document/js-api/index.bs
@@ -732,7 +732,7 @@ which can be simultaneously referenced by multiple {{Instance}} objects. Each
 
 <pre class="idl">
 dictionary GlobalDescriptor {
-  required USVString value;
+  required DOMString value;
   boolean mutable = false;
 };