--- doc/install/linux/install.pl	2019/11/07 15:55:31	1.60
+++ doc/install/linux/install.pl	2019/12/03 04:55:08	1.61
@@ -77,7 +77,7 @@ if (!open(LOG,">>loncapa_install.log"))
           &mt('Stopping execution.')."\n";
     exit;
 } else {
-    print LOG '$Id: install.pl,v 1.60 2019/11/07 15:55:31 raeburn Exp $'."\n";
+    print LOG '$Id: install.pl,v 1.61 2019/12/03 04:55:08 raeburn Exp $'."\n";
 }
 
 #
@@ -734,6 +734,9 @@ sub chkconfig {
         if (($distro =~ /^ubuntu/) && ($version <= 8)) {
             $daemon{'cups'} = 'cupsys';
         }
+        if (($distro =~ /^ubuntu/) && ($version >= 18)) {
+            $daemon{'ntp'}    = 'chrony';
+        }
     } elsif ($distro =~ /^fedora(\d+)/) {
         my $version = $1;
         if ($version >= 15) {