diff --git a/conf/machine/imx7s-warp.conf b/conf/machine/imx7s-warp.conf
index 7a23fd6..68c82e6 100644
--- a/conf/machine/imx7s-warp.conf
+++ b/conf/machine/imx7s-warp.conf
@@ -18,4 +18,8 @@ PREFERRED_PROVIDER_virtual/kernel ?= "linux-warp7"
 UBOOT_CONFIG ??= "sd"
 UBOOT_CONFIG[sd] = "warp7_secure_defconfig,sdcard"
 
+# wic
+IMAGE_FSTYPES = "wic.gz"
+WKS_FILE ?= "imx-uboot-bootpart.wks"
+
 MACHINE_EXTRA_RRECOMMENDS += "firmware-imx-brcm"