diff --git a/poky/meta/recipes-core/images/build-appliance-image_15.0.0.bb b/poky/meta/recipes-core/images/build-appliance-image_15.0.0.bb
index 1176311..17e06a0 100644
--- a/poky/meta/recipes-core/images/build-appliance-image_15.0.0.bb
+++ b/poky/meta/recipes-core/images/build-appliance-image_15.0.0.bb
@@ -34,7 +34,7 @@
 RECIPE_NO_UPDATE_REASON = "Recipe is recursive and handled as part of the release process"
 BA_INCLUDE_SOURCES ??= "0"
 
-IMAGE_CMD_ext4_append () {
+IMAGE_CMD:ext4:append () {
 	# We don't need to reserve much space for root, 0.5% is more than enough
 	tune2fs -m 0.5 ${IMGDEPLOYDIR}/${IMAGE_NAME}.rootfs.ext4
 }