diff --git a/doc/training-guides/basic-install-guide/lab_control-node.xml b/doc/training-guides/basic-install-guide/lab_control-node.xml
index 47207fd7..fca78686 100644
--- a/doc/training-guides/basic-install-guide/lab_control-node.xml
+++ b/doc/training-guides/basic-install-guide/lab_control-node.xml
@@ -137,7 +137,7 @@ netmask 255.255.255.0
     </para>
     <para>Install NTP:</para>
     <para>
-        <screen><prompt>#</prompt> <userinput>apt-get install ntp</userinput></screen>
+        <screen><prompt>#</prompt> <userinput>apt-get install -y ntp</userinput></screen>
     </para>
     <para>Configure NTP Server to controller node:</para>
     <para>
@@ -174,10 +174,6 @@ netmask 255.255.255.0
           <userinput>apt-get install -y rabbitmq-server</userinput>
       </screen>
     </listitem>
-    <listitem>
-      <para>Install the NTP service:</para>
-      <screen><prompt>#</prompt> <userinput>apt-get install -y ntp</userinput></screen>
-    </listitem>
     <listitem>
       <para>Create these databases:</para>
       <screen><prompt>$</prompt> <userinput>mysql -u root -p</userinput></screen>