diff -Nru debian-installer-20101020ubuntu451.18/debian/changelog debian-installer-20101020ubuntu451.19/debian/changelog
--- debian-installer-20101020ubuntu451.18/debian/changelog	2017-12-20 01:50:48.000000000 +0800
+++ debian-installer-20101020ubuntu451.19/debian/changelog	2018-01-16 21:59:03.000000000 +0800
@@ -1,3 +1,9 @@
+debian-installer (20101020ubuntu451.19) xenial; urgency=medium
+
+  * No change rebuild to pick up the latest change in preseed (LP: #1452202) 
+
+ -- Zhang Hua <joshua.zhang@canonical.com>  Tue, 16 Jan 2018 21:58:04 +0800
+
 debian-installer (20101020ubuntu451.18) xenial; urgency=medium
 
   * Rebuild against grub2 2.02~beta2-36ubuntu3.15 patched for EFI timers