diff --git a/debian/changelog b/debian/changelog
index e0b4f8b3..59f33297 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+livecd-rootfs (2.81) quantal; urgency=low
+
+  * live-build/auto/config: Disable zsync for BINARYFORMAT=iso*|usb* builds.
+
+ -- Colin Watson <cjwatson@ubuntu.com>  Thu, 30 Aug 2012 23:44:33 +0100
+
 livecd-rootfs (2.80) quantal; urgency=low
 
   * add pvr-omap4 driver to omap4 image builds for everything but
diff --git a/live-build/auto/config b/live-build/auto/config
index 53a45fc6..47947e6b 100755
--- a/live-build/auto/config
+++ b/live-build/auto/config
@@ -153,6 +153,7 @@ case $BINARYFORMAT in
 		BINARY_IMAGES="$BINARYFORMAT"
 		MEMTEST=memtest86+
 		BOOTLOADER=syslinux
+		OPTS="${OPTS:+$OPTS }--zsync=false"
 		;;
 esac