diff --git a/poky/meta/classes/image_types.bbclass b/poky/meta/classes/image_types.bbclass
index 2a45d45..954d673 100644
--- a/poky/meta/classes/image_types.bbclass
+++ b/poky/meta/classes/image_types.bbclass
@@ -278,7 +278,7 @@
 # CONVERSION_CMD/DEPENDS.
 COMPRESSIONTYPES ?= ""
 
-CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip zst sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum bmap u-boot vmdk vhd vhdx vdi qcow2 base64 ${COMPRESSIONTYPES}"
+CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip zst sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum bmap u-boot vmdk vhd vhdx vdi qcow2 base64 gzsync zsync ${COMPRESSIONTYPES}"
 CONVERSION_CMD_lzma = "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 CONVERSION_CMD_gz = "gzip -f -9 -n -c --rsyncable ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
 CONVERSION_CMD_bz2 = "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
@@ -302,6 +302,8 @@
 CONVERSION_CMD_vdi = "qemu-img convert -O vdi ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.vdi"
 CONVERSION_CMD_qcow2 = "qemu-img convert -O qcow2 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.qcow2"
 CONVERSION_CMD_base64 = "base64 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.base64"
+CONVERSION_CMD_zsync = "zsyncmake_curl ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
+CONVERSION_CMD_gzsync = "zsyncmake_curl -z ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 CONVERSION_DEPENDS_lzma = "xz-native"
 CONVERSION_DEPENDS_gz = "pigz-native"
 CONVERSION_DEPENDS_bz2 = "pbzip2-native"
@@ -319,6 +321,8 @@
 CONVERSION_DEPENDS_base64 = "coreutils-native"
 CONVERSION_DEPENDS_vhdx = "qemu-system-native"
 CONVERSION_DEPENDS_vhd = "qemu-system-native"
+CONVERSION_DEPENDS_zsync = "zsync-curl-native"
+CONVERSION_DEPENDS_gzsync = "zsync-curl-native"
 
 RUNNABLE_IMAGE_TYPES ?= "ext2 ext3 ext4"
 RUNNABLE_MACHINE_PATTERNS ?= "qemu"