diff --git a/conf/machine/imx6sl-warp.conf b/conf/machine/imx6sl-warp.conf
index 536e3d0..4756aec 100644
--- a/conf/machine/imx6sl-warp.conf
+++ b/conf/machine/imx6sl-warp.conf
@@ -27,8 +27,13 @@ include conf/machine/include/tune-cortexa9.inc
 
 SOC_FAMILY = "mx6:mx6sl"
 
-# Use eMMC boot partition by default
+# WaRP uses eMMC boot partition by default and the u-boot inside .sdcard image
+# does not override it. However, build u-boot binary anyway in order to provide
+# a binary to be used if an update is needed
+# see how-to override eMMC boot partition on the following link
+# http://git.denx.de/?p=u-boot.git;a=blob;f=board/warp/README
 IMAGE_BOOTLOADER ?= ""
+EXTRA_IMAGEDEPENDS += "u-boot"
 
 UBOOT_MACHINE ?= "warp_defconfig"