diff --git a/conf/machine/nitrogen6sx.conf b/conf/machine/nitrogen6sx.conf
index d56929d..de8509a 100644
--- a/conf/machine/nitrogen6sx.conf
+++ b/conf/machine/nitrogen6sx.conf
@@ -14,8 +14,9 @@ include conf/machine/include/arm/armv7a/tune-cortexa9.inc
 KERNEL_DEVICETREE = "imx6sx-nitrogen6sx.dtb"
 KERNEL_IMAGETYPE = "zImage"
 
-PREFERRED_PROVIDER_u-boot ??= "u-boot-boundary"
-PREFERRED_PROVIDER_virtual/bootloader ??= "u-boot-boundary"
+IMX_DEFAULT_BOOTLOADER = "u-boot-boundary"
+UBOOT_SUFFIX = "imx"
+UBOOT_BINARY = "u-boot.${UBOOT_SUFFIX}"
 PREFERRED_PROVIDER_virtual/kernel ??= "linux-boundary"
 PREFERRED_PROVIDER_virtual/kernel:use-mainline-bsp ??= "linux-fslc"