ratingbar not working (not clickable) when using ratingBarStyleSmall style : <p>ratingbar didn't change when the user click on it ?</p>

<p>her is my xml code </p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.soulhis.testmaterialdesign.Test"&gt;
&lt;RatingBar
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/ratingBar4"
    android:layout_centerVertical="true"
    style="?android:attr/ratingBarStyleSmall"
     android:layout_centerHorizontal="true" /&gt;
 &lt;/RelativeLayout&gt;
</code></pre>

<p>the problem occur just when using ratingBarStyleSmall 
tested on android jellybean api level 17 </p>
