--- doc/build/ubuntu16LTS_install.frag	2016/04/22 15:08:29	1.1
+++ doc/build/ubuntu16LTS_install.frag	2017/06/12 20:56:13	1.2
@@ -131,7 +131,7 @@ Add LON-CAPA ubuntu repository to your /
 </p>
 <pre>
 sudo apt-get install python-software-properties
-sudo apt-add-repository 'deb http://install.loncapa.org/ubuntu trusty main'
+sudo apt-add-repository 'deb http://install.loncapa.org/ubuntu xenial main'
 </pre>
 <h2>5. <a name="ilc">Installing LON-CAPA</a></h2>
 <h3>Import the LON-CAPA encryption key</h3>