diff --git a/iron-validatable-behavior.html b/iron-validatable-behavior.html
index 2354860..d792b0d 100644
--- a/iron-validatable-behavior.html
+++ b/iron-validatable-behavior.html
@@ -21,6 +21,7 @@
    * Changing the `invalid` property, either manually or by calling `validate()` will update the
    * `aria-invalid` attribute.
    *
+   * @demo demo/index.html
    * @polymerBehavior
    */
   Polymer.IronValidatableBehavior = {