diff --git a/debian/changelog b/debian/changelog
index 18ffbd7d..e251668a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+livecd-rootfs (0.40) UNRELEASED; urgency=low
+
+  * Set CASPER_GENERATE_UUID=1 to tell casper's initramfs hook to generate a
+    UUID which will be checked against the discovered medium (LP: #144800).
+
+ -- Colin Watson <cjwatson@ubuntu.com>  Thu, 04 Oct 2007 14:15:49 +0100
+
 livecd-rootfs (0.39) gutsy; urgency=low
 
   * Print the file size in fdupes output as well.
diff --git a/livecd.sh b/livecd.sh
index ff73cd49..770893ad 100755
--- a/livecd.sh
+++ b/livecd.sh
@@ -63,6 +63,7 @@ export TTY=unknown
 export TERM=vt100
 export DEBIAN_FRONTEND=noninteractive
 export LANG=C
+export CASPER_GENERATE_UUID=1
 SRCMIRROR=http://archive.ubuntu.com/ubuntu
 COMP="main restricted"
 ARCH=$(dpkg --print-installation-architecture)