diff --git a/debian/changelog b/debian/changelog
index 6482ccdb..f1976375 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+livecd-rootfs (24.04.20) noble; urgency=medium
+
+  * live-build/functions: mount_disk_image: add rootpart parameter
+
+ -- Tomáš Virtus <tomas.virtus@canonical.com>  Wed, 24 Jan 2024 12:52:29 +0000
+
 livecd-rootfs (24.04.23) noble; urgency=medium
 
   * Remove magic-proxy and all references to it as it is not used by any
diff --git a/live-build/functions b/live-build/functions
index bdd24b77..27baea91 100644
--- a/live-build/functions
+++ b/live-build/functions
@@ -220,7 +220,8 @@ get_lowerdirs_for_pass () {
 mount_disk_image() {
     local disk_image=${1}
     local mountpoint=${2}
-    mount_image ${disk_image} 1
+    local rootpart=${3:-1}
+    mount_image ${disk_image} "${rootpart}"
     mount_partition "${rootfs_dev_mapper}" $mountpoint
 
     local boot_dev="${loop_device}p16"