diff --git a/src/ellipse.class.js b/src/ellipse.class.js
index ad1e3229..6b9543cd 100644
--- a/src/ellipse.class.js
+++ b/src/ellipse.class.js
@@ -25,6 +25,20 @@
      */
     type: 'ellipse',
 
+    /**
+     * Horizontal radius
+     * @property
+     * @type Number
+     */
+    rx: 0,
+
+    /**
+     * Vertical radius
+     * @property
+     * @type Number
+     */
+    ry: 0,
+
     /**
      * Constructor
      * @method initialize