diff --git a/docs/docs/ref-04-tags-and-attributes.md b/docs/docs/ref-04-tags-and-attributes.md
index 3082f45da9..a90e3f5d98 100644
--- a/docs/docs/ref-04-tags-and-attributes.md
+++ b/docs/docs/ref-04-tags-and-attributes.md
@@ -57,7 +57,7 @@ accept accessKey action allowFullScreen allowTransparency alt async
 autoComplete autoFocus autoPlay cellPadding cellSpacing charSet checked
 className colSpan cols content contentEditable contextMenu controls data
 dateTime defer dir disabled draggable encType form formNoValidate frameBorder
-height hidden href htmlFor httpEquiv icon id itemprop itemscope itemtype
+height hidden href htmlFor httpEquiv icon id itemProp itemScope itemType
 label lang list loop max maxLength method min multiple name noValidate
 pattern placeholder poster preload radioGroup readOnly rel required role
 rowSpan rows sandbox scope scrollLeft scrollTop seamless selected size span
diff --git a/src/browser/ui/dom/HTMLDOMPropertyConfig.js b/src/browser/ui/dom/HTMLDOMPropertyConfig.js
index 8f4e6c32cd..9c5cdb5aa7 100644
--- a/src/browser/ui/dom/HTMLDOMPropertyConfig.js
+++ b/src/browser/ui/dom/HTMLDOMPropertyConfig.js
@@ -136,9 +136,9 @@ var HTMLDOMPropertyConfig = {
     autoCapitalize: null, // Supported in Mobile Safari for keyboard hints
     autoCorrect: null, // Supported in Mobile Safari for keyboard hints
     property: null, // Supports OG in meta tags
-    itemscope: HAS_BOOLEAN_VALUE, // Microdata: http://schema.org/docs/gs.html
-    itemtype: null, // Microdata: http://schema.org/docs/gs.html
-    itemprop: null // Microdata: http://schema.org/docs/gs.html
+    itemScope: MUST_USE_ATTRIBUTE | HAS_BOOLEAN_VALUE, // Microdata: http://schema.org/docs/gs.html
+    itemType: MUST_USE_ATTRIBUTE, // Microdata: http://schema.org/docs/gs.html
+    itemProp: MUST_USE_ATTRIBUTE // Microdata: http://schema.org/docs/gs.html
   },
   DOMAttributeNames: {
     className: 'class',