diff --git a/plugins/guests/ubuntu/cap/change_host_name.rb b/plugins/guests/ubuntu/cap/change_host_name.rb
index bd302ad6f..2213b41df 100644
--- a/plugins/guests/ubuntu/cap/change_host_name.rb
+++ b/plugins/guests/ubuntu/cap/change_host_name.rb
@@ -22,7 +22,7 @@ module VagrantPlugins
               # hosts should resemble:
               # 127.0.0.1   localhost host.fqdn.com host
               # 127.0.1.1   host.fqdn.com host
-              comm.sudo("sed -ri 's@^(([0-9]{1,3}\.){3}[0-9]{1,3})\\s+(localhost)\\b.*$@\\1\\t#{name} #{name.split('.')[0]} \\3@g' /etc/hosts")
+              comm.sudo("sed -ri 's@^(([0-9]{1,3}\.){3}[0-9]{1,3})\\s+(localhost)\\b.*$@\\1\\t\\3 #{name} #{name.split('.')[0]}@g' /etc/hosts")
               comm.sudo("sed -ri 's@^(([0-9]{1,3}\.){3}[0-9]{1,3})\\s+(#{old.split('.')[0]})\\b.*$@\\1\\t#{name} #{name.split('.')[0]}@g' /etc/hosts")
 
               if comm.test("[ `lsb_release -c -s` = hardy ]")