diff --git a/meta-digi-dey/recipes-digi/swu-images/files/sw-description b/meta-digi-dey/recipes-digi/swu-images/files/sw-description
index 727581d36..498ac549b 100644
--- a/meta-digi-dey/recipes-digi/swu-images/files/sw-description
+++ b/meta-digi-dey/recipes-digi/swu-images/files/sw-description
@@ -18,6 +18,7 @@ software =
                     device = "##ROOTFS_DEV##";
                     type ="raw";
                     sha256 = "@##ROOTIMG_NAME##";
+                    compressed = "zlib";
                     installed-directly = true;
                 }
             );
diff --git a/meta-digi-dey/recipes-digi/swu-images/swu.inc b/meta-digi-dey/recipes-digi/swu-images/swu.inc
index 8188324c4..78aa76d3f 100644
--- a/meta-digi-dey/recipes-digi/swu-images/swu.inc
+++ b/meta-digi-dey/recipes-digi/swu-images/swu.inc
@@ -22,7 +22,7 @@ DESCRIPTION = "${@oe.utils.ifelse(d.getVar('TRUSTFENCE_ENCRYPT_ROOTFS', True) ==
 
 BOOTFS_EXT ?= ".boot.vfat"
 BOOTFS_EXT_ccimx6ul ?= ".boot.ubifs"
-ROOTFS_EXT ?= ".ext4"
+ROOTFS_EXT ?= ".ext4.gz"
 ROOTFS_EXT_ccimx6ul ?= ".ubifs"
 
 BOOT_DEV_NAME ?= "/dev/mmcblk0p1"