diff --git a/lib/js/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.js b/lib/js/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.js
index c28a796e..43438ab9 100644
--- a/lib/js/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.js
+++ b/lib/js/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.js
@@ -8,8 +8,6 @@ var Webapi__Dom__NodeFilter = require("../../../src/Webapi/Webapi__Dom/Webapi__D
 
 var el = document.createElement("strong");
 
-document.characterSet;
-
 Webapi__Dom__Document.compatMode(document);
 
 document.doctype;
diff --git a/src/Webapi/Webapi__Dom/Webapi__Dom__Document.re b/src/Webapi/Webapi__Dom/Webapi__Dom__Document.re
index c018c10f..11658b74 100644
--- a/src/Webapi/Webapi__Dom/Webapi__Dom__Document.re
+++ b/src/Webapi/Webapi__Dom/Webapi__Dom__Document.re
@@ -17,7 +17,6 @@ module Impl = (T: {type t;}) => {
   let ofNode = (node: Dom.node) : option(T.t) =>
   Webapi__Dom__Node.nodeType(node) == Document ? Some(Obj.magic(node)) : None;
 
-  [@bs.get] external characterSet : T.t => string = "";
   [@bs.get] external compatMode : T.t => string /* compatMode enum */ = ""; /* experimental */
   let compatMode: T.t => Webapi__Dom__Types.compatMode =
     (self) => Webapi__Dom__Types.decodeCompatMode(compatMode(self));
diff --git a/src/Webapi/Webapi__Dom/Webapi__Dom__HtmlDocument.re b/src/Webapi/Webapi__Dom/Webapi__Dom__HtmlDocument.re
index 36a790b9..31c1efa7 100644
--- a/src/Webapi/Webapi__Dom/Webapi__Dom__HtmlDocument.re
+++ b/src/Webapi/Webapi__Dom/Webapi__Dom__HtmlDocument.re
@@ -3,11 +3,13 @@ module Impl = (T: {type t;}) => {
 
   [@bs.get] [@bs.return nullable] external activeElement : t_htmlDocument => option(Dom.element) = "";
   [@bs.get] [@bs.return nullable] external body : t_htmlDocument => option(Dom.element) = ""; /* returns option HTMLBodyElement */
+  [@bs.get] external characterSet : t_htmlDocument => string = "";
   [@bs.set] external setBody : (t_htmlDocument, Dom.element) => unit = "body"; /* accepth HTMLBodyElement */
   [@bs.get] external cookie : t_htmlDocument => string = "";
   [@bs.set] external setCookie : (t_htmlDocument, string) => unit = "cookie";
   [@bs.get] [@bs.return nullable] external defaultView : t_htmlDocument => option(Dom.window) = "";
   [@bs.get] external designMode : t_htmlDocument => string /* designMode enum */ = "";
+  [@bs.get] external contentType: T.t => string = "";
   let designMode: t_htmlDocument => Webapi__Dom__Types.designMode =
     (self) => Webapi__Dom__Types.decodeDesignMode(designMode(self));
   [@bs.set] external setDesignMode : (t_htmlDocument, string /* designMode enum */) => unit = "designMode";
diff --git a/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.re b/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.re
index 4df531d3..b86ec84e 100644
--- a/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.re
+++ b/tests/Webapi/Webapi__Dom/Webapi__Dom__Document__test.re
@@ -3,7 +3,6 @@ open Document;
 
 let el = document |> createElement("strong");
 
-let _ = characterSet(document);
 let _ = compatMode(document);
 let _ = doctype(document);
 let _ = documentElement(document);