diff --git a/debian/changelog b/debian/changelog
index e1b0a80b..68865f8e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+livecd-rootfs (2.664.51) focal; urgency=medium
+
+  [Steve Langasek]
+  * The chroot tmpfs mount should only be /var/lib/apt/lists, not
+    /var/lib/apt; the latter breaks changes to /var/lib/apt/extended_states.
+    LP: #2036195.
+
+ -- Phil Roche <phil.roche@canonical.com>  Thu, 19 Oct 2023 18:17:20 +0100
+
 livecd-rootfs (2.664.50) focal; urgency=medium
 
   * Do not modify /etc/ssh/sshd_config for ubuntu-cpc
diff --git a/live-build/functions b/live-build/functions
index 931f0225..fa9bcda6 100644
--- a/live-build/functions
+++ b/live-build/functions
@@ -109,7 +109,7 @@ setup_mountpoint() {
     mount -o bind /usr/share/livecd-rootfs/live-build/apparmor/generic "$mountpoint/sys/kernel/security/apparmor/features/"
     mount -o bind /usr/share/livecd-rootfs/live-build/seccomp/generic.actions_avail "$mountpoint/proc/sys/kernel/seccomp/actions_avail"
     mount -t tmpfs none "$mountpoint/tmp"
-    mount -t tmpfs none "$mountpoint/var/lib/apt"
+    mount -t tmpfs none "$mountpoint/var/lib/apt/lists"
     mount -t tmpfs none "$mountpoint/var/cache/apt"
     mv "$mountpoint/etc/resolv.conf" resolv.conf.tmp
     cp /etc/resolv.conf "$mountpoint/etc/resolv.conf"