diff --git a/configs/colibri-imx6ull_defconfig b/configs/colibri-imx6ull_defconfig
index 3defaf0..6ef5dff 100644
--- a/configs/colibri-imx6ull_defconfig
+++ b/configs/colibri-imx6ull_defconfig
@@ -14,6 +14,8 @@
 CONFIG_BOOTDELAY=1
 # CONFIG_USE_BOOTCOMMAND is not set
 # CONFIG_CONSOLE_MUX is not set
+CONFIG_USE_PREBOOT=y
+CONFIG_PREBOOT="setenv fdtfile imx6ull-colibri${variant}-${fdt_board}.dtb"
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_BOARDINFO is not set