diff --git a/doc/training-guides/lab000-virtualbox-basics.xml b/doc/training-guides/lab000-virtualbox-basics.xml
index 92e9fd9f7a..c6c66652ab 100644
--- a/doc/training-guides/lab000-virtualbox-basics.xml
+++ b/doc/training-guides/lab000-virtualbox-basics.xml
@@ -81,20 +81,12 @@
       </tbody>
     </informaltable>
     <para>If you don't know whether your processor is VT enabled, you
-      could check it by installing cpu checker</para>
-    <informaltable class="c25">
-      <tbody>
-        <tr>
-          <td rowspan="1" colspan="1"><screen><prompt>#</prompt> <userinput>apt-get install cpu-checker</userinput></screen></td>
-      </tr>
-      <tr>
-          <td><screen><prompt>#</prompt> <userinput>kvm-ok</userinput></screen></td>
-        </tr>
-      </tbody>
-    </informaltable>
-    <para>If your device does not support VT it will show</para>
-    <para>INFO:Your CPU does not support KVM extensions</para>
-    <para>KVM acceleration can NOT be used</para>
+      could check it by installing cpu checker:</para>
+      <screen><prompt>#</prompt> <userinput>apt-get install cpu-checker</userinput>
+<prompt>#</prompt> <userinput>kvm-ok</userinput></screen>
+    <para>If your device does not support VT it will show:</para>
+    <screen><computeroutput>INFO:Your CPU does not support KVM extensions
+KVM acceleration can NOT be used</computeroutput></screen>
     <para>You will still be able to use Virtual Box but the instances
       will be very slow.</para>
     <para>There are many ways to configure your OpenStack Setup, we