diff --git a/docs/_templates/customize.html b/docs/_templates/customize.html
index 1f9d5b5c..23b01033 100644
--- a/docs/_templates/customize.html
+++ b/docs/_templates/customize.html
@@ -58,7 +58,7 @@
             <p>
               Lorem ipsum dolor sit amet.
             </p>
-            <button class="mdl-button mdl-button--colored mdl-button--raised">BUTTON</button>
+            <button class="mdl-button mdl-button--colored mdl-button--raised mdl-js-button mdl-js-ripple-effect">BUTTON</button>
             <button class="mdl-button mdl-js-button mdl-button--fab mdl-button--colored mdl-js-ripple-effect">
               <i class="material-icons">email</i>
             </button>