diff --git a/classes/sdcard_image-sunxi.bbclass b/classes/sdcard_image-sunxi.bbclass
index 3be6b60..b4c4d30 100644
--- a/classes/sdcard_image-sunxi.bbclass
+++ b/classes/sdcard_image-sunxi.bbclass
@@ -13,9 +13,10 @@ inherit image_types
 #
 #
 
-# This image depends on the rootfs image
+# Use an uncompressed ext4 by default as rootfs
 SDIMG_ROOTFS_TYPE ?= "ext4"
 
+# This image depends on the rootfs image
 IMAGE_TYPEDEP:sunxi-sdimg = "${SDIMG_ROOTFS_TYPE}"
 
 # Boot partition volume id
@@ -27,8 +28,6 @@ BOOT_SPACE ?= "40960"
 # First partition begin at sector 2048 : 2048*1024 = 2097152
 IMAGE_ROOTFS_ALIGNMENT = "2048"
 
-# Use an uncompressed ext4 by default as rootfs
-SDIMG_ROOTFS_TYPE ?= "ext4"
 SDIMG_ROOTFS = "${IMGDEPLOYDIR}/${IMAGE_NAME}.rootfs.${SDIMG_ROOTFS_TYPE}"
 
 do_image:sunxi_sdimg[depends] += " \