diff --git a/docs/docs/ref-04-tags-and-attributes.md b/docs/docs/ref-04-tags-and-attributes.md
index f43b05cc3c4..f67a4a2b623 100644
--- a/docs/docs/ref-04-tags-and-attributes.md
+++ b/docs/docs/ref-04-tags-and-attributes.md
@@ -76,7 +76,7 @@ There is also the React-specific attribute `dangerouslySetInnerHTML` ([more here
 
 ```
 cx cy d dx dy fill fillOpacity fontFamily fontSize fx fy gradientTransform
-gradientUnits markerEnd markerMid markerStart offset opacity
+gradientUnits markerEnd markerMid markerStart maskUnits maskContentUnits offset opacity
 patternContentUnits patternUnits points preserveAspectRatio r rx ry
 spreadMethod stopColor stopOpacity stroke strokeDasharray strokeLinecap
 strokeOpacity strokeWidth textAnchor transform version viewBox x1 x2 x y1 y2 y
diff --git a/src/browser/ui/dom/SVGDOMPropertyConfig.js b/src/browser/ui/dom/SVGDOMPropertyConfig.js
index e9fbe129452..f411387a740 100644
--- a/src/browser/ui/dom/SVGDOMPropertyConfig.js
+++ b/src/browser/ui/dom/SVGDOMPropertyConfig.js
@@ -42,6 +42,8 @@ var SVGDOMPropertyConfig = {
     markerEnd: MUST_USE_ATTRIBUTE,
     markerMid: MUST_USE_ATTRIBUTE,
     markerStart: MUST_USE_ATTRIBUTE,
+    maskUnits: MUST_USE_ATTRIBUTE,
+    maskContentUnits: MUST_USE_ATTRIBUTE,
     offset: MUST_USE_ATTRIBUTE,
     opacity: MUST_USE_ATTRIBUTE,
     patternContentUnits: MUST_USE_ATTRIBUTE,
@@ -79,6 +81,8 @@ var SVGDOMPropertyConfig = {
     markerEnd: 'marker-end',
     markerMid: 'marker-mid',
     markerStart: 'marker-start',
+    maskUnits: 'maskUnits',
+    maskContentUnits: 'maskContentUnits',
     patternContentUnits: 'patternContentUnits',
     patternUnits: 'patternUnits',
     preserveAspectRatio: 'preserveAspectRatio',